Nobody knows if and when they'll pull an exit scam but if they do, they're probably not stupid enough to do it before all the refugees from Evo is signed up and have good amount of money on escrow. Ordering about a month from now is a lot more risky with everyone settled in and 420 sales bumping the amount of transactions.
There is never a "safest time" when it comes to the markets. Agora is mostly centralized escrow and FE listings.