7. One by one, they will come until the call in the bitcoin community is 50% or more and they will hardfork bitcoin to DPOS. That will be great for Bitcoin and bitshares and by extension humanity.
Even IF it was possible to achieve a 50% consensus, what good would that do the people trying to make the decisions? Even if you had %60 or more, again, how would anyone know? Let us say you got enough people together to somehow vote their Bitcoins, and were able to achieve a 75% consensus of all Bitcoins for converting away from mining, and prove to everyone you had achieved such. (Good luck with all that!!) The rest of them would be lost, for who knows what reasons, to some alt coin that is still mined, like Litecoin, again, causing a crash of Bitcoin valuations - end of Bitcoin's significance, just like the split in the ripple community devastated ripple. These types of splitting problems, and so many competing Alt coins, are the criticle problems most holding things back.
My point is that the crypto currency community that first solves these kinds of problems, and is able to amplify the wisdom of all the holders of the currency, and can build and rigorously measure significant amounts of consensus, make lightning fast decisions, like you seem to think they will be able to achieve, and if the people making such decisions can know, quantitatively, how much consensus they do or don't have, in real time, and what is required to achieve near unanimous consensus, without loosing anyone, THAT is the currency that will blow away all other currencies, and finally pull in all the Big institutions, who then know their desires would be heard, and so on.
Oh, and did I mention that modern leaderless governance, consensus building, amplification of the wisdom of the crowd systems like those being developed at Canonizer.com are capable of doing all this, with ease?
In my opinion, good leaderless hon bureaucratic Governance is what will, in the end, determine the winning crypyto currency, and only with that will you get the rest of the world.