As yahoo62278, the manager of Byteball campaign stated in the Bounty topic several days ago (around 2 weeks), the campaign might last for another month, and we have stayed at the last day of the second week.
It means the campaign might last for at least two more weeks if tonych decided to keep it run.
How many more weeks is the signature campaign running for?
No one can sure that when it happen, when Byteball hit such high price again, but it will.
History won't replay. I don't think we can expect 850$ in next two months. The situation is quite different from that in last June/July.
The investors are interested in buying in as holding will bring them the profit (free distribution). Now, there are only loss of money by holding it.