Zero-G fights are largely narrative, since the real thing involves a 3D space in every possible way.
Assuming they kept that element, the upcoming "Ender's Game" movie should have lots of zero-G stuff. "Gravity" will too, if the trailers are any indication. Whether either movie is any good otherwise is an open question...
The penalties mentioned above do not contradict. Low gravity situations (John Carter early on) are different than micro-gravity and zero gravity.