The announced return of Batista to WWE during the upcoming 1/20/14 RAW the week prior to the Royal Rumble was said to have been in the plans to announce even with advertising leaking over the weekend of his return according to a report by Dave Scherer. He's expected to be part of the Royal Rumble match in 2014 and WWE programming leading into Wrestlemania 30.
WWE.com has posted a series of Batista career highlights at this link.
Batista himself also issued a tweet about his return set for 2014.
I can't wait to get to the Cheesefest in Hoakietown and punch somebody right In the f'n face! Playtime's over children.— Dave Bautista (@DaveBautista) December 24, 2013