Our best clue, (if you believe what Kirby and Parker are saying), is to listen to the opening statements of the CLT and PHX crew news. I have not heard the rumor you are speaking of.
I haven't heard the rumor either(the Republic one won't die) but you are correct, Parker and Kirby have said several times that you can't just split up the airline now and the only mergers that make sense are with a major network carrier.