WoW: Classic is scheduled for August 27 (technically August 26 if you're in the Americas). The soonest that you can play it is starting in May, during Blizzard's scheduled stress tests. To opt-in you must have an active subscription on your account. If you do, go to Account Management and select the Wow Classic beta. Keep in mind, there will be level caps during the test. The schedule is as follows:

Once we had our starting point, we began taking stock of what we had in the source code and what we could make available, which included restoring the original development database from archival backups. After stitching various key pieces together, we had a locally rebuilt version of Patch 1.12 running internally. The team could create characters and do basic questing and leveling—and dying, which we did many times. For testing purposes. Obviously. 

Nov 15 Managing your time and Classic So how are you guys thinking you're going to do it? I know when I played Vannila, I sunk so much time into it as I didn't have any responsibilites. Nowadays I work 24 on, 48 off (which is actually good, except for raid days) and have a wife. I figure a lot of you will be in the same boat. That may be a good thing as it can slow the pace a bit.Crupzz4 Nov 15
Nov 15 How to fix paladin dps Just make holy wrath & exorcism work on all types of enemy but not affect player characters. It's an easy fix that will make pally dps better in pve but stay the same as they were in vanilla in pvp. Put this thing into a deep ret talent so it will require people to spec deep in ret to be able to dps. A good spot is add it with two-hand weapon specialization making it so that by putting talents into it all hostile aside from players and undeads(since they are already affected by the default version) to be affected by the dmg and effects of the spells effectiveness by 33%/66%/100%. I doubt they would even do this so im just throwing out ideas since too many of you dont actually read the forum and only read the OP here you go to explain a bit of my reasoning because this change wont make ret stronger than pure dps; clearly most of you people didnt play vanilla nor know anything about naxx. ...Toushin260 Nov 15