Here are some features I'm expecting for them to have on this game:
1. Big events like a legendary pokemon appearing near your area just like shown in the trailer and needs some people to fight it. I don't think anyone can catch it. The one shown in the trailer maybe just an event for defeating a pokemon boss.
2. For pokeballs, I think all type of pokeballs can be purchased through either money or gems except for master balls that surely can catch may be only obtained via gems or certain promos/events.
3. Definitely this will have AI opponents to obtain some money in game without the need of looking for people always or you can fight your friends even from afar whether they're online or not.
4. I just hope they make a nice feature of the pokemon store or pokemon center. Like for example for the pokemon center to make it more realistic, you can make a certain places in the real world a pokemon center and pokemon store.
I just hope the pokemon will still look nice and compliments with wherever landscape they're currently on.
