Honestly I don't think DREAM will ever win against Strikeforce if they continue to put their top dogs against each other. Maybe some day WEC will be it's own company and make a deal with DREAM so we can see the featherweights square off.
I doubt ther WEC will become it's own organization. Zuffa owns the WEC and all of the weightclasses above Lightweight have been removed and put into the UFC. With the vast amount of talent in the WEC and the exciting fights that they can consistently put on, I doubt Zuffa will let go of the WEC completely.