How much time has passed between the elevator proposal and tonight's all-new episode of Grey's Anatomy? What's the deal with Thatcher Grey's return? Will Meredith become pregnant now that Ellen Pompeo is? Will Denny be back yet again?

Michael Ausiello of EW has the scoop on all of this and more.

Let's let him take it away - and post comments below!

Q: Can you give us something juicy on Meredith and Derek?

A: Okay, here's something: A longtime Grey's Anatomy duo are about to break up - presumably for good - and it's not Derek and Meredith. Nope. It's Bailey and Tucker!

In the upcoming Season Five finale (Thursday, May 14), Bailey takes the bold step of leaving her husband after he once again fails to support her career.

Q: Can you tell us how much time has lapsed between the elevator proposal episode of Grey's Anatomy and the episode that airs this week?

A: A few days, I believe. It's not long at all.

Q: Any scoop on the anticipated Thatcher Grey return on Grey's Anatomy next week? I'm hoping for some overdue Meredith and Lexie scenes!

A: Two of my favorite Mer-Lexie scenes ever take place in next week's episode, but it's more a result of the thorny Derek-Mark situation than Thatcher's return.

Q: Any insight on what is going to happen with Meredith and Derek now that Ellen Pompeo is pregnant in real life?

A: If you're asking me whether there's a McBaby in their future, I don't know. I can tell you that if Pompeo takes the standard two-month maternity leave following the birth of her first child this fall, Grey's Anatomy could be Mer-less for a portion of next season. Maybe they'll send her to some really long medical convention. Or dispatch her to the parking lot to look for Dr. Hahn.

The possibilities are endless!

Q: Will Jeffrey Dean Morgan be appearing in Grey's Anatomy's 100th episode?

A: Let's examine the evidence, shall we? Exhibit A: Morgan appeared in the 100th ep photo-op, which took place on the Grey's Anatomy set during filming of the said 100th episode. Exhibit B: The official logline for the landmark ep says, "Izzie fears the worst when she begins experiencing familiar symptoms." Exhibit C: I have to warn you that this one's really spoilery, but I'm hearing ... wait, what's that? The jury has already reached a unanimous verdict?

Eh, so much for Exhibit C. It was really good, too.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.