A source with close ties to Seattle Grace tells TV Guide's Michael Ausiello that Jeffrey Dean Morgan is returning to Grey's Anatomy as Izzie's late fiancé in an episode to air later this season.

Since Denny clearly passed away back in May, it seems safe to assume that he'll appear in either a dream sequence or a newly created flashback.

Of course, if Shonda Rhimes wants to get really creative, she could read some of our fan suggestions on how (and if) Denny should come back to life.

TV Guide offers a few humorous options:

• Kenny. Denny's long-lost (and evil) twin. Just as Izzie is starting to feel get over Denny, her ill-fated soul mate's brother shows up to reclaim the $8.7 million inheritance!
• Ghost of Denny. At the opening ceremonies of the Denny Duquette Memorial Clinic, his spirit appears just in time to cut the ribbon. Poignant.
• An Alien. Okay, so this isn't the X-Files. But some of you may recall that while guest starring as Izzie's love, Jeffrey Dean Morgan was also a regular on the WB series Supernatural. Katherine Heigl, for her part, once starred on Roswell. Think about it.

Can you think of any other possible scenarios - serious or crazy - that may bring our beloved Jeffrey Dean Morgan back to Grey's Anatomy? Leave us a comment and share.

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