Some things you could add.
1) You could add a badge thing so When we beat a leader like brock. We get a badge.
2) You could buy the pokeballs from the mart instead of having as many as you want.
3) This is an option but, you could add a pokedex of all the pokemon you caught. This would be super cool.
4) The Mystery Gift... Every Month or something. You can get an item or pokemon.
5) You could make it to where the pokeball have a chance of catching the pokemon instead of instant.
I can't wait til it updates! This game could be the best game ever!