The seniority issue is now in the hands of the Federal Judge in PHX. Most here feel that that process (including appeals) will eventually resolve the matter. The FAs did get a TA for a joint agreement - I've heard very little on details as yet, but if it is ratified that leaves the pilots as the only group not fully integrated. I agree with all those who say that the seniority issue - as big a deal as it is to those on the inside - will be viewed as nothing more than a minor stumbling block, and will not prevent a deal from being done if it otherwise meets the requirements of the parties. And that's true whether US is the acquirer (AA) or is the acquired (DL).
Isn't it ironic, though, that three years after Delta fought tooth and nail to avoid US buying them, they are now apparently considering turning around and buying US?