Another Avenger to hit the big screen ?

Director Edgar Wright (Shawn of the Dead ,Hot Fuzz) has always expressed his desire to make a movie on Ant-Man. But due to the lack of interest from Marvels side,the project had been shelved for a long time.Until that is ,Edgar posted the following pic, with the caption:"Received this in the mail. What can it mean?"

Could The Avengers big success encouraged Marvel to finally give Edgar the green light?
For those who aren't well versed with the Marvel Comics ,it was Ant-Man & his wife ,Wasp who were the founding members of the Avengers.Ant Man's main power is of shrinking & calling upon ants.