Of course it will survive. It has survived many other stress tests in the past, in the same way, we'll be fine this time as well. It is announced though that this one will be by far the biggest so far.

These stress tests are not at all that bad for a network in my opinion. They will show us the weak points and maybe even help this debate come to an end. Yes, it is not convenient to have you transaction stuck, but users should just anticipate this and pay slightly bigger tx fee than the fee of the stress test transactions.