I don't think there is any way we'll get a PC Bayonetta except maybe way in the future. If Sega is going to re-release Bayonetta, it'd be for Wii U and I don't think Nintendo would want it to come for PC as well.
A PC port does exist internally (note the 3D Vision glasses). Why Sega is sitting on it, I don't know.
Edit: Oh, duh, this is what spurred the conversation. Serves me right for not scrolling up.
