thenammagazine
Super Freak
Ryan Reynolds would completely throw that theory out of the window as he is still under sequel contracts with DC/WB for Green Lantern and still under sequel options with Marvel for Deadpool. The only thing that would hinder is if she was contractually obligated to film during the WW filming time with a Marvel project but other than that, all the actresses are open game from any Marvel film.
That's assuming they keep Reynolds on as GL. Be smart if they did though, considering they can actually coattail the success of Deadpool.