SpoilerTV.com has revealed the title of the Season 7 premiere and a ridiculously brief and vague synopsis (as is every type of spoiler for Mad Men). The episode will be called Time Zones. It seems pretty obvious that this is in reference to the New York City/Los Angeles time difference. It sounds like there will be some cross-country attempts, and possibly fails, at communication.
In terms of the synopsis, here goes:
Don makes a friend; Joan has drinks with a client; Roger receives a perplexing phone call; Peggy hears new work.
Now let's try that again:
Don makes a friend (It's gotta be a girl, no? Maybe not. Didn't know Don could make platonic friends. That'll be fun; Joan has drinks with a client (Remember that time...? Yeah you remember it. On another note, this could be the beginning of the Joan takeover we've all been waiting for. Joan and Peggy starting their own firm?); Roger receives a perplexing phone call (I'm thinking his funds have diminished, or someone unfortunately has passed, but that's just too predictable, maybe he becomes too into LSD and this leads to health issues?); Peggy hears new work (because she's Don now and she's going to have to make some really big decisions, what is good for Peggy's Career isn't necessarily what is good for Peggy).