According to F4WOnline.com, prior to Raw tonight, it was decided that Batista "essentially is staying" with WWE, and he will be working with the company at least through the Payback PPV.
As seen on Raw tonight, WWE planted the seeds for a Daniel Bryan vs Kane rematch at Payback and an Evolution vs Shield rematch at the PPV.
The Bryan vs Kane match will likely be a Buried Alive Match, and it remains to be seen whether or not a stipulation will be added to the Shield vs Evolution rematch.
It also appears as if John Cena and Bray Wyatt are not through, as Wyatt cut a promo on Raw tonight, to which Cena will respond on Main Event tomorrow night.
When Batista does take a hiatus from WWE, which will likely be after Payback, he is scheduled to return sometime in late August, possibly in time for SummerSlam, or in the early fall.