I will likely buy the next generation M3 or M4.
I've had two BMW coupes now and might want a sedan this time, so maybe M3 > M4.
We don't know how they'll perform, but the spyshots (M3) and "97% accurate" concept (M4) look good. If they perform as expected, I'll be wanting them.
I would like to wait until the ZCP version, etc. - but, truthfully, I don't know if I'll have the patience. We'll see.
I plan on keeping the glorious S65 though. I bought it to keep.