In my opinion, if wall street ever gets the hang of it, it will be do or die situation. I think it might be the catalyst that was needed for the bitcoin market to finally establish on the global market, or it might be the rolar coaster ride that that ends with disaster for the community.
Either way, it might be the final throw at dice.
The main problem is that Wall Street will not seriously take a grip of it without some of form of regulation. After all, would you trade oil if there wasn't any regulation related to its production, distribution and trade? Who would put millions in it?