You're good.

My next (and presumably final) round of CC goodies arrives in May. I'm not too worried about it...I suspect we'll have another year or so of separate operations. Remember UA/CO continued operating separately for quite a while after the formal merger.

The only unusual action I took in the waning days of OnePass was calling our corporate TA and asking for elite status. They were our preferred carrier and the TA could arrange for Silver or Gold easily enough. (They probably could have arranged for Plat for a more frequent traveler or higher executive.) I was cycling out of UA status, so the gift nudged me along through program year 2012.

If you're a no-status AA and US flier but might need a status in the future, you might see if your corp TA can hook you up with a Dividend Miles status. Alternatively, you could wait until July 1 (or whatever the optimal date is) and complete a US Elite Trial.

And yeah, if you have the ability to do so, I'd probably churn Barclays once or twice more. I seem to recall that Barclays is tighter than some other banks though...this isn't a bottomless pit.