We previously reported that Batista is scheduled for tomorrow's Extreme Rules pay-per-view and Monday's Raw before leaving the company to embark on promotional hype for his latest movie Marvel's Guardians of the Galaxy.
We mentioned that PWInsider.com revealed that Batista was leaving ealier than WWE would have liked. The report has been leaked from PWI's Elite section and mentions that WWE wanted to do Batista vs. Daniel Bryan for the WWE World Heavyweight Title at June's Payback pay-per-view but Batista turned it down. Batista felt that losing to Bryan a smaller wrestler after tapping at WrestleMania XXX would make him look weak, especially since he is about to appear in a major summer movie.
So, ultimately Batista decided the time was right for him to leave as WWE has nothing for him as this time.
There is currently no word on when he will be back.