I'd let the dust settle a bit. The big question is how important is QOL vs. getting to an airline? How does the KA job pay compared to a regional where you will be abused and either have to move or be subjected to commuting. At 29 you are not so old to wait it out a yr and see if you upgrade on the KA.

The majors are going to try and destroy whatever is left of the "good" regionals. But, they have tremendous headwinds in operating their old whipsaw game. See how it plays out.