It would be great to make Waze a built in app that comes shipped with Android and ready to be used right out of the box. Waze is owned by Google and something like that may be possible. This will make users in countries where Waze is not famous know that the app exists and make them at least give it a try.

If this is not possible then maybe establish partnerships with smartphone companies to make Waze available as a built in app with their version of Android.

Another suggestion is to rename the Waze app to something like Google Waze to convince Google fans who don’t know that Waze is a Google product that it is and make them at least give it a try. In my country people are so obsessed with Google Maps just because it has Google written on it.

(Optional feature, just for active editors)
Some Update Requests (UR) require a visit to the place in order to verify, or even take pictures.
I'd like an option in the app that acts as a reminder, when I'm driving near one of this UR that I follow. Waze could show them on the map, with an optional notification. Then, if I have spare time, I could take some minutes in order to solve the UR.

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(Característica opcional, sólo para editores activos)
Algunas Solicitudes de Actualización requieren una visita al lugar para verificar o incluso tomar fotografías.
Me gustaría una opción en la aplicación que sirva de recordatorio, cuando conduzco cerca de uno de estos UR que sigo. Waze podría mostrarlos en el mapa, con una notificación opcional. Entonces, si tengo tiempo libre, podría tomarme algunos minutos para resolver dicha solicitud.

Many places in the WME are not used for various reasons: The place was closed or moved, the place was created for an event that has passed, the place was wrongly created, the place exists but nobody uses it for routing. During the years, the number of such "garbage" places is growing, and will continue to grow forever.
There must be some way of cleaning these places from the map.
It is suggested that every place (excluding RPP and natural features) that nobody set it as a destination for 15 months, will be automatically flagged, with a reason that the place was not used for 15 months*. Every place will have a checkbox that can be checked by rank 4+ editors if no tracking is required for that place.
An editor that will treat the flag will have the following options: delete the place, or decide to reset the timer, or decide to check the checkbox that this place should not be tracked anymore (by rank 4+ editor).

* The 15 months is because it may be that a place is visited only during a specific holiday that is not on an exact date each year (there are several reasons for that).

How to Help Emergency Vehicles To Reach Their Destination Faster
Waze should have a new mode of operation for priority vehicles (buses, taxis, ambulances, firefighters, police...), because only these vehicles are authorized to travel on priority lanes.
A special Emergency Sub-mode should be added for rescue and police vehicles. These vehicles have authorization, in case of emergency, to activate their warning lights and horns, to drive on contraflow lanes, on sidewalks...
Emergency vehicle drivers shall be able to enter this sub-mode after a secure identification and certified authorization mechanism
On the Waze screen of all the drivers in the vicinity, add a flashing mark of the emergency vehicle location and the direction of its progression. In case of collision hazard, activate an audio alert. This will allow the drivers to clear the way to the emergency vehicles.
On priority lanes, the central computer could recommend the public transport vehicles drivers (including trolley drivers) either to stay in their station or to reach a station or parking place and leave place for the emergency vehicle to move forwards.
When two (or more) emergency vehicles reach the same road junction on a collision course, the central controller should inform all the relevant emergency car drivers about the situation and set priorities for crossing the intersection, and when possible, define priorities.

As StreetView is often outdated or just does not exist when trying to keep Waze Maps updated with latest road constructions or changes, road configurations/restrictions/speed limits/signs etc. needs to be checked and verified on-spot. There's no chance Waze Map Editors will go and check everything themselves. We have so many Wazers driving around that could help them answering specific questions.

I suggest creating a hybrid reporting tool that would extend existing reporting functionality and help Waze Map Editors gathering specific answers they need directly from Wazers who are on-spot. This would let to keep Waze Maps updated as fast and accurate as possible. Let's name it AskWazersBox.

Tool should let Map Editors to create a standalone object or mark an existing point/segment/area and specify a question as well as predefined answers and/or request a photo. A Wazer that crosses/enters/approaches the spot would get a popup asking to answer the question and/or to post a photo, similar like it is for fuel prices or when approaching a destination. If none of predefined answers are suitable, Wazer should be able to comment in free text.
Tool also should let to select which level Wazers are prompted to answer the question to ensure quality answers depending on problem complexity.
To prevent trolling or otherwise abuse of the tool, I believe it should be enabled for Editors that are level 3-4+.
Also, obviously, some users may not want to get extra popups, so Waze client should have a setting/consent "I agree to receive questions from Waze Map Editors" which could be enabled by default but users also could choose "do not show again" etc.
To prevent some forgotten AskWazersBox'es, it should be possible to set an expire period after which it stops sending questions to Wazers and only stores gathered responses for some limited time.

I am proposing that Judaeo-Spanish enters the list of localized languages. It is an idea that has been in my mind for some years now, mainly because I love cultural heritage, and especially the one that creates links among different groups and countries. In the case of Judaeo-Spanish, it is not only Israel and Spain, but also many communities in several places around the world where Jewish people settle down after the Expulsion from Spain. As you will know, this language is also in danger of vanishing forever from daily use, which adds a social dimension to the task.

Regarding the feasibility, these are my opinions. Frankly speaking, it wouldn't be a very popular option, but this shouldn't deter us. Who would translate into Judaeo-Spanish? I volunteer, although I don't speak it. However, the similarities between Spanish and Judaeo-Spanish make possible to get a close to correct translation using a few grammar and vocabulary rules. In a similar way, other Spanish localizers could also be interested in enrolling. Of course, we would need an official localizer/reviewer.