Dwayne Johnson Teases Possible Warner Bros Movie?

Today has been full of cryptic messages from actors. Earlier we had Arrow's Stephen Amell post an image of a Green Arrow/Justice League crossover comic cover. Now we have a tweet from Dwayne "The Rock" Johnson with Warner Bros CEO Kevin Tsujihara with a note "We'll Do Some Cool Things".

Good hang time w/ my bud Kevin Tsujihara (Warner Bros). Brilliant CEO & guy's guy. We'll do some big cool things!;) pic.twitter.com/nJJPhnObeA
— Dwayne Johnson (@TheRock) November 6, 2013

No one is saying Dwayne Johnson has anything to do with the current Man of Steel universe but he has LONG been rumored to maybe play Lobo. But what else might they have up their sleeves?

Again this is all just speculation; he could simply be in a WB film and have nothing to do with DC Comics at all....