What is an interesting question: Futures are nothing reliable, but if we think about the market-situation: There will be nearly no supply for days and weeks. After about 2 weeks just 20k Coins will exist while the first 3 days not even 1000 ZEC will be out there. Day 1: just about 100 ZEC. I believe it's possible that some really will buy to prices like that or at least really high.
It will be like that. The buyers will be simply investors/team-Members of zcash. Hype the hype. It is so obvious. But reading some replies at btctalk and in some other boards i already see a fanbase who want to get screwed
And some are ofc some miners taking advance of that situation and support the hype
I also thought about that possibility. That those, who are interested in establishing a high price, could buy at high prices for some time. And I would say mining-farms would have the most interest to do that, not necessarily the Zcash-team.
But either way: There is so much hype, this gets so much attention, I really believe that there will be some guys who will buy Zcash at ridiculous high prices. Most likely the first "supply" on the exchanges will be about 0.00x Zec... and so on. And thousands waiting and asking themselves if this will be the next big thing etc.
I really have no idea what Zcash will be. But at least it's not boring!
By the way: It just launched.