I greatly support this kind of thing!

Have a bump.

I'd join if i had any more time leftover. Alas.

But yeah, making new characters for the original setting sounds super sweet!

I do think however that the original characters should instead be like npcs that are just happening in the background. For example shredder is actually quite frightening, way more than krang, from what i remember from the movies shredder is like a ronin samurai general with a penchant for tearing people up with tiny blades!! He should definitely be kept in the background as the big bad. I'd like to see people making analogs of bebop and rocksteady but on either sides, good or bad. Maybe someone could run just a regular nin from "the foot", or, hell, even a cop! Just a regular cop! Maybe with some kind of mutation.