Undoubtedly their will be lots of users. But I have been playing XI since 2004 and XIV since 2011. Releases and updates have always caused a problem with servers. When it comes to servers SE really throw in the towel. I believe since so many people pre-ordered EA will be unstable BUT I hope this will motivate them to make sure the 27th will not see further problems. However I wont hold my breath on this.