If you think the server will crash because of all the people connecting after the patch, you don't understand how it works. Every server runs its own queuing system (HIVE) for connections. We're able to handle all these players connecting and sending messages right now while live. The patch would only reduce load while people are busy updating their versions, then slowly ramp it back up to normal. A player getting the incorrect version screen or failing to login is going to use less resources than one running around the map alive, anyway. Worse comes to worse, the DB server gets overloaded and you can't get on? Oh well, wait a couple hours. It'll be fine. Just be patient.