I see it as way more than a big patch. They are essentially reworking every aspect of the game, from story to balance to UI. I don't expect them to implement level scaling, but it really wouldn't be terribly difficult to implement. It'd require some testing for sure, but It's not any more major than a new difficulty mode or game ending. There's this big aversion to level scaling which I can understand when it's extreme, but It can be an extremely helpful mechanic when used sparingly to make games less linear.