I don't really understand the pow and pos lingo as I am not a computer guy, however, I am betting that miners are gonna dump on this, I almost wish the dev would of waited for the announcement. Ahhh well, I ll buy in on the dump:-)
There are about 300 (super)blocks left to mature, which makes about 50k MAST. 50k out of 2.5 million...
Even if you assume that all these are immediately dumped on the market (not gonna happen), at the current valuation these 50k are worth about 10 BTC. That's nothing.
Other market forces weigh much more at this point than a few last miners dumping.