I entered -- I hope it doesn't count against me that the only mods I have on worldofwar are over a year old ;)
They still seem to be doing some major adjustments to the PvP stuff, I'd have to guess that's the major holdup on 1.13. Well, that and talent balancing.. but I'd definitely expect to see a test realm up within the next few weeks.
There's been general rumors that we will, and I think even slouken's said it's probable... I'm saying what's the holdup? :P
I'd bet it probably has something to do with the frequency of updates they're patching in. Changing things so often that it'd make supporting a larger pool of people's complaints extremely difficult, they want to keep the signal to noise ratio low until things are more stable.
Well actually you should because everyone is eligible. I sent in a list of people I thought should get a key and some of those people have already had their info sent off to Blizzard...unfortunately not all of them though.
As I said before, I do what I can, but can't make any promises since I don't own the site.
Rushster has posted some names on the front page, so check it out.
As far as I know, this is how it works:
Said website sends Blizzard your info, Blizzard verifies your account info and stuff, and then sends you an invite email with the key. I think they send off the emails once or twice a week, Monday/Tuesday and Thursday/Friday.
If you get in beta, I'll probably be on one of the following accounts if you wanna say hi