I think he's going to flounce (the only thing that may stop him is he probably really enjoys campaigning), as he is obviously so fed up of not getting what he wants and is now just burning everything down so that Congress will have to do the work. I could also see a scenario where the money men will convince him to resign.
It's going to get much worse in the next year, and the next few years, in terms of the economy (not even getting into whether any of us will even be alive, or whether we'll all be in mass shelters...), but I honestly have no idea if people will even blame him or the GOP for this or if they will blame foreigners, Democrats, Obama, Hollywood, the media...
All I know is I've decided to stop using his name at all. I don't even want to type it out anymore.