I hope we haven't seen the last of Delilah. To end Season 7 of JAG, Bud Roberts (Patrick Labyorteaux) lost a leg to a land mine. Season 8 and the rest of the series admirably showed his emotional and physical recovery. Though Bud's Navy career stalled, Admiral Chegwidden's last act before retirement was to promote Bud to Lieutenant Commander. I'd like to see McGee stay committed to Delilah, helping her recover until she can return to work despite her disability.
UPDATE (4:45 P.M.): From today's Television Critics Association press tour panel for CBS drama showrunners, Zap2it.com's Andrea Reiher quoted NCIS's Gary Glasberg:
The intent is to show an individual, a really smart individual, take control of her life and rise up after what she's been through. That's all the stuff that's coming down the road. We're excited about the arc of what that character is going to face as someone in a wheelchair and how that's going to be portrayed.