I haven't played Gunz for a very long time, I remember there was a rummor that quests were coming out and some other cool things, I just want to know if that ever happen or its the same old plain Gunz? And yes I'm too lazy to download, I just don't want to download it if its not updated.

Yes, quest has been updated. That includes bosses.

only in G ijji gunz has quests been added. iGunz is the same, i didnt play it for over a year and got a 300kb update. Ijji is regulary updated, has cash shop, quests, more focus on clans, etc.