Here are some real quick ideas. Feel free to +rep please if you like these ideas. If you don't like them, please be mature about it and just add ideas of how to improve them, thanks.
#1: Gangs should be able to hold 30 people.
#2: When gangs get 1000 base hours, the leader and 3-5 people should get 3-4 EC each.
#3: In each base, the rooms should be a bit bigger for more room.
#4: Make a furniture thats a clothing cabinet (wardrobe). You grab it and it goes to the customization GUI where you can change hats, bodies, colors, and heads.
#5: iEra should be a game with a username and password. You could sign in on any device with this account. Therefore, no more account transfers would be needed.
#6: A new gang base (I made the levels snk, i'll email them to you if you want).
#7: The clothing cabinet could also be a warp to Narnia.
#8: A new underwater gang base. (Not the same one as before)
#9: New types of houses such as condos or apartments that come with a pool in it.
#10: An airplane that could bring you to a place off-map thats only able to go to by plane.