Bitcoin will reach high prices

On 1 August on exchanges all wallets will be locked.
As you know because of the fork people transferred their Bitcoin from the exchanges into personal wallets.
This will generate a shortage of BTC making the price to jump very high.
Shortage that can already pe seen on the loan market on Poloniex:

This Bitcoin shortage will make impossible for users to purchase other coins, as there is no more Bitcoin on the market.
But the selling, the offer of that coins stays the same....and that will drive the exchange rate down because the exchange rate is established by demand and offer.
Even if people see a low exchange rate and decide to spend their Bitcoin and buy other coins at that exchange rate, as it is very tempting, that will be impossible because of the locked wallets. They will have no way to transfer their BTC on the exchange.
So....prices will go very low. until the wallets unlock.