I’m pretty sure home world characters get priority in the login queue if you read through all the details. The DC travel will also be funneling them to whatever worlds are least congested at that moment, if I’m understanding it right: world will be chosen for you based on how many people are currently on it. (Unless that’s just a default that can be changed.)
I’m cautiously optimistic that if everyone is forced to stay on their home worlds, that the queues won’t be that bad at all. And worse comes to worse, low pop servers get some help filling the duty finder for a bit!