I'd say Cincinnati is a safe bet for closure at some point.

OTOH, MSP has lost widebody flying and SLC is static. Neither have the biggest equipment and they are both senior, so careers in each of those domiciles will likely be not as lucrative as in others.

There's been tons of commentary on LA, I have no opinion on that base, I'm just not as familiar as the pilots affected.

DAL has a 4 corners strategy ATL, NYC, SEA and LAX?

DTW is robust because it is two hours closer to asia (great circle) than ATL.