I would like to be able to suggest if it hasnt been already, the ability to create a friends list in game. The purpose for this would to be able to find and communicate with local players for local battles in parks, etc.
Where I live we have a huge, thriving Pokemon Go community. What it lacks is what JWA can offer, real battling that isnt against AI. Being able to find people around town and being able to keet up in parks, etc to battle would add yet another amazing layer to this already (imo) amazing game.
I can see this being a titan of AR games, and i think this option would make it that much better than the competiton