Not only is the selection process a great deal more time consuming than you may think (imagine sifting through the many hundreds of applications and trying to give each one a fair assessment), but even once they are selected, there is more work to do. Bringing on those testers is a time consuming process in and of itself, as they are each contacted, informed of the procedures, fill out the necessary paperwork, set up with the various programs, etc. Each of these tasks, including the initial assessments, has to come out of someone's time who can't spent it focusing on working on the game, etc. And because of the recent events (a major update launch on Mobile, Console, and 3DS), in tandem with the holidays and Cenx/Red having a baby, things are likely to be just completely swamped. Even if the testers have been selected, now may not be the time to make it official because it would require sustained attention that can't be given right now.
If you guys think that the thread should be closed in the mean time, until the decisions are finalized, that's one thing . . . though to be fair, its unlikely there will be a public announcement of those selected, so I'm not sure what the long term purpose of this thread is now that the applications are closed. I'd be happy to inquire as to what we should do with the thread.