Sorry dude, but in this case I think it's perfectly safe to say never.
Plus, if DDL were ever to do a Batman character, I almost feel like his talent would be wasted on a supporting character like Gordon. That's why I hope if Cranston is cast (fingers crossed!) that Gordon will have a prominent role, like he did in BB and TDK.
Don't agree with this post? Well, it's stylistically designed to be that way, and I can't undo that, but I can diminish the effect of it.