Question to Devs regarding Servers

I have a question to the devs in regards of Server infrastructure.

Many say, there will not be merges before the next update, since there will be queues if they merge now.

But what if (unexpectedly) the patch brings back so many players, that even the existing servers get queues? Whats the strategy then? And if you have a strategy for this scenario, why can’t we merge now and use this strategy if the servers get queues?