I've seen factions, parkour, skyblock, kitpvp, skywars, hide and seek, paintball, creative, survival games, ultra hard-core, spleef and tnt run on other servers :s Not to be a killjoy or anything, but the only original things on this server are a few of the games maps, houses and fishslap. The plugins seem unique, but besides that, most other large servers have at least the skyblock, factions, skywars, SG and creative covered.
I don't see why we have to try to be so different from every other server anyways.. If something popular gets added, don't you think that'll attract more attention than an "original" game that nobody has ever heard of before? Maybe i'm missing the point here, but people enjoy the things they're used to a lot more than something they have never seen before.. It's just human nature that people fear change and coward towards things that they're used to.
I'm more than welcoming to new and "original" game, but restricting the server to only new gametypes just seems silly, as most, if not all good game ideas have been done already.
On topic though:
I can see this being a lot like a minecraft - mario kart crossover, which by the way, if this game ever does get added, i'm sure he'll be more than willing to recreate some mario kart tracks for the server as he's like an addict to the game; he has every mario kart game 100% complete with an exception to double dash because he always gets carried away with the punching mechanics and slingshots himself out of the track..
Speed III: Check.
Gravel bridges that have to be crossed quickly: Check.
A few difficult shortcuts: Check.
Bouncy trampolines: Check.
Get these done, and you got a flawless game ^^ :D