Lost
Sure, the next season is already carefully planned out, and JJ Abrams has very little do with this show anymore, but Alias director Jack Bender's still around, and they're always in need of ladies who can do kung fu and suss out conspiracy theories. And besides, the last season finale pretty much blank-slated everything we know about anything, so it's not like they couldn't cram her in somewhere along the final season, if for no other reason than as a shout-out to the JJ fanatics.

Dancing with the Stars
It's totally beneath her of course, but girl's got moves. She'd own that competition.

Ugly Betty
After becoming a widower last season, Daniel Meade is going to need a new plucky, down-to-earth girlfriend. Maybe Jen could be a schoolteacher too, and the storyline could take a creepy, Vertigo-style turn. This show could use a little noir.

Brothers & Sisters
As Scotty's sister maybe? That would be adorable. But what's important is how awesomely weird would it be to watch her interact with nice Sloane, aka Saul? Nice Sloane is still weird for me to watch by himself, and I'm three seasons in. Plus, she loves this sappy crap.

Wife Swap
She and Ben swap wives with Heidi and Spencer. Hilarity ensues.

Desperate Housewives
She could be the person Mike married at the end of last season (instead of Teri Hatcher), but they'd have to make her a nice girl to make it watchable. Alpha girl bitchiness just doesn't come naturally to Jen, talented as she is.

Grey's Anatomy
She could either be a patient they all act really unprofessional around, or she could be a new doctor or administrator who comes in for a few episodes who they all act really unprofessional around. Either way, I'd be happy to be excited about more than Hunt and Yang for once, and she could have some really meta banter with somebody about how that Melissa George character really ruined things around there for a while. Or maybe she could just break into the hospital as a marauder, House-style, and take a newly recovered Izzie hostage and beat the crap out of her for no apparent reason.

Private Practice
Easy! She swoops in and saves Violet from Marshall's wife Katie because her unborn baby has Rambaldi DNA! If that sounds ridiculous to you, you're A) right, but B) clearly not accustomed to what kind of absurdity goes on in this show. It would be the best episode ever.

Your ideas?