My (attainable) wish list. These are things the team has been rumored to be, or logically by my own speculation has been working on.
Vehicles with function. There's rumors, but I have billed them as false until confirmed by the Gurus. We may, hopefully, see something about them at EA Play.
Horses. While script reference to them has existed since before the launch of Cats and Dogs (presumably, it is a remnant of horses being planned, but cut); there was extensive script added in September; thus I have a feeling we'll be getting them this year.
Police and burglars. Since firefighters are coming in the next patch; police and burglars are the logical next step. Police uniforms exist; many of the animations exist, criminal prison jumpsuits exist. Thus, just a few animations for the burglars, and it's ready to go.