Aye, at the end of the day they're both as bad as each other, Iran and Saudi Arabia, perhaps there will be reform but I doubt it. But there will be continued conflict, and if Iran does happen to get the bomb, it won't aim it at us, it'll aim it at Riyadh, and Saudi Arabia will get a bomb from Pakistan and point it at Tehran.
The west getting drawn into this is a bad idea, Russia is already in, let them play. Unfortunately with the whole oil dependency thing I doubt that we'll stay out, looking at the next two candidates for US presidency I'd say that it's almost guaranteed that the US will be going back into the middle of this Middle Eastern conflict.
