Michael Ausiello of Entertainment Weekly is dishing on all things Grey's Anatomy in his weekly Q&A today. Of course, there's still plenty left unresolved. Here's what he's got:

Q: If Denny is all in Izzie's head on Grey's Anatomy, how can he appear in scenes without her, like the one in last week's episode where he was sitting on the edge of the bed with Alex?

A: Hmm. That's a great question. Let me ask ABC president Steve McPherson and get back to you. Because if I learned anything at press tour last week, it’s that McPherson loves to discuss the goings-on at Grey's Anatomy, both on screen and off.

Q: Seriously, how much longer is Denny going to be around for on Grey's Anatomy? Love Jeffrey Dean Morgan, but it's just not working for me.

A: He'll be around at least through March, since that's when Izzie's aneurysm-esque medical condition finally gets diagnosed.

Q: I am loving the new doctor Arizona Robbins (Jessica Capshaw) on Grey's Anatomy. Any news on whether they plan to keep her on?

A: They're grooming her as a love interest for Callie (Sara Ramirez), so I suspect she'll be staying put for now. Speaking of which, look for Callie to seek advice from Addison about her feelings for Arizona in the February 12 crossover with Private Practice.

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