When you've got your EOS on your hard-wallet, you need to move them , but it isn't necessary to do that before, it's also possibale to do it afterwords (but it is better to do it now.)
Predictions : When everything is going to be like planned, EOS will rise about 500% within 2 weeks, and 6000% within 6 month..
When the launch will fail, we will fall like 75% within 2 days.
Even when EOS wil go down untill $2/3 it's not a problem, then the rise will come after a year or ssomething if they can manage it..Else all your ETH/BTC/other currencies will be gone..it's a gamble..but thats Cryptolife.
Enjoy the ride the next 4 hours!!