I really like the Rock and wouldnt really object to seeing John Stewart as the Green Lantern of the JL movie but i really think both Ryan and Hal should be given another shot. Ryan Reynolds was not the problem with that movie and Hals my favorite GL. Plus we are going to need a bit of Levity in that movie or else itll end up too serious. John Stewart cant really provide that.
Don't really see the Rock making a good GL, don't get me wrong the dude seriously needs to play a super hero or villain at some point just not a GL. I could see him as Black Adam tho.
He pretty much already did.
Casting's too perfect. Hollywood would never go for that.