I read the first draft of the Gibson screenplay the other night after seeing this news and it was certainly interesting. There were several things I liked and several I didn't, but I really like the idea of adapting one of those unmade scripts in comic form.
I'll give the second draft a read soon, I'm looking forward to seeing how it compares to the first. If it's more stripped-down and potentially filmable then yeah I'd imagine this will probably be an adaptation of the first draft, since that one is certainly pretty big and action-packed.