More voices with street names for not necessarily English speaking countries.
More Dutch and Belgian voices that also say street names, specials like Philippe Geubels.
For now only English speaking languages get specials.
I think adding YouTuber voices to the app like Dutch YouTuber Egbert or English YouTuber Mrwhostheboss would be nice as a recurring special or a permanent option.
It would also make the app more popular with a perhaps younger audience.