If you're planning on being involved in this epic event, you'll need to plan ahead. If you haven't been on the test realms, you will have to download several patches. Even though the gear is free of charge, but getting it takes some time and patience. The battle will take place on Sunday, but you should get your character ready today or Saturday if you want to be ready.
I don't expect everything to go perfectly. My experience with the TTR has been that it is laggy, but manageable. I'll be there. Who will I be seeing on Sunday?