Sustaining gamer/customer satisfaction is pretty much the ultimate goal for any developer, especially in the realm of mobile games, since there are so many easily accessible ones out there. The primarily issue most developers may face is retaining these gamers/customers, most probably due to "game burnout" I.e dedicated gamers may often reach end game content faster than new update releases. Since this is more than likely inevitable in any game I would like to suggest that the developers create a subforum for any upcoming/pending/future updates for players to look forward to. Simply sustaining interest is more than enough to maintain a more solidifed customer base. Granted, you'll find revenue in casual gamers but there is no denying that a decent chunk of profit comes from the dedicated players. Keep our interests piqued! And keep up the good work!