I'm totally on board with the top three, for real. I know they're doing the fourth (if they raise the cap to 12-15 like they said they might, they'll need more colors) and the fifth one's just going to kill me xD.
Thanks frechi!
For the longevity of the game, more modes and options need to be available. Some ideas: Body mimic (the Thing) mode, 0/1 second kill cooldown (see youtube video), Hide and Seek, Tag, only one kill per imposter, ect.
By tweaking a few things they could use the same maps, and characters to bring new and wacky game modes. Some of which could be less about finding the imposters, and simply surviving. The community eventually finds some really creative rulesets like Halo and other games have done. Some of the people hacking this game have already come up with some funny game mods.