The Season Four finale of Grey's Anatomy is tomorrow night and we've compiled a ton of promotional photos that give us a pretty good indication of what's to come in this much-anticipated, two-hour episode ... or at least make it fun to speculate.

Take this one for example ...

Meredith Grey appears to have champagne. Will there be something to celebrate?

What do you think will happen tomorrow night? We have our theories, and the photos below sure give us some interesting ideas. Click to enlarge the thumbnails below, and follow the jump for many more photos from tomorrow night's "Freedom" ...

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