I'm in the same boat! I'm a working professional, with a wife and 2 kids. I still love to play WoW, but can't log on until 8:30 pm PST/10:30pm CST/11:30pm EST most nights. I'm propsing to get a group of people in the same boat to form a new guild for MoP.
Tempus Nobis is now open for business! Tempus Nobis is latin for "time for us" and perfectly captures the essence of this guild. It's our time to relax and play wow after we've completed all our real life responsibilities for the day.
The "requirements" as they are would be the focus would be on the late-night player. We'd work towards raiding and rated BG's eventually but would be in no rush. When we do get to the point we can raid it would be strictly one 10-person raid and no more than 2 nights a week for 3 hours a raid. There would be no mandatory requirements to attend 90% of raids or anything like that. The idea would be to keep the guild fairly small so as to promote that family feel.
We will be rolling on the Kil'Jaden server, horde side! Kil'Jaden has a healthy population, stable economy and a very even split between horde and alliance. If this sounds like something to interest you, please post in this thread or email me at Wowreroll@hotmail.com
This guild will be open for people to re-roll or play existing characters, purely up to you!