I've been thinking for a while and have come up with a few ideas for RPs.
Claymore based RP: Claymore is a manga in which claymores walk from town to town taking on jobs to kill Yomas. Yomas are beasts that feed of of human flesh to survive, they look like humans except for their eyes are yellow and catlike, their skins is colored differently and their heads and arm have veins popping out of them. They heal their bodies at incredible rates and have strength that surpasses any human. The Claymores have Yoma powers in them and this is how they are able to kill the Yoma so easily. Claymores are named this because of the huge swords they carry on their backs that they use to dispatch the Yoma with.
Link:
Claymore: Dawn of the Silver Eyed WitchThe story would be based around the time before Clare and the rest, back in the beginning days of the Organization when they were still experimenting on both men and women. There would need to be about 5 or 6 people willing to play Claymores of either sex but if anyone was a male they would have to become an awakened being. (super powerful Yoma) There would be human characters as well but they would not be able to fight. They could however help during fights in a way similar to how Raki does.
Weapon Over Wielder: This would be a standard fantasy based RP but with a slight twist; the weapons would be the determining factor in strength. Meaning that you could be a young child or an old lady and still have the same fighting potential as a muscle clad warrior. Though being an old lady would definitely have its share of disadvantages it would still add quite a bit of diversity to the RP. The story would be set in one city or at least everyone would start and meet up somehow in one city.
Arena RP: This RP would follow the adventures of a select group of warriors on their rise to fame and glory in the Arena. The behind the scenes action would be covered as well as all the fighting done in the arena itself. Expect lots and lots of fighting mostly one on one battles between NPCs and other characters as well. There would be some special events and such (think battle royals, archery competitions with the target being other competitors and a plethora of other things). The Arena would be a gruesome place and though they have rules they often times won't enforce them leaving it open to cheaters. There would also be an underground organization of Arena combatants who exploit the rules and try to sabotage matches in any way possible, they will be elaborated on more upon creation of the RP.
Deaths little helpers: The RP would be based around Death's minions. Death is the strongest being in all of the world but he is not omnipresent so he has enlisted the help of a few select humans to obtain his "Blessing" and obtain special powers and strengths. Death is the controlling factor in whether people live or die even if someone were to suffer a fatal injury or a mortal blow Death would have to give the final word on if they they die. The power he grants his minions allows them to do this as well.
So those are my ideas though none of them are totally fleshed out I can easily give them a good story. Please feel free to comment and if there is enough interest in one or two I will make an OOC for them and go from there.