If they did, I'm guessing it would be in the repository already. Coding a character sheet like the Roll20 Official 5E sheet is a big undertaking. Unless there's an avid T2K fan and coder out there, I'm not sure you're gonna see a new sheet since most character sheets on Roll20 are player created. Is there some particular problem with the sheet or do you just want something with the look and feel of the 5E one?