1 and 2: Long answer: IBT 357 is the current CHQ/Republic/Shuttle America (native RAH) Bargaining Agent and FAPA is the same for F9. There is a representation election in progress at this time to determine the single bargaining agent for the combined RAH/F9 group. RPC is a group who is trying to get the RAH and FAPA pilots into a coalition which keeps the RAH and F9 pilot groups as separate bargaining units, but combined as the single representative of all the pilots on the merged seniority list. 357 is trying to represent the combined group as a single bargaining unit. The election results should be out by the end of June.
1 and 2: Short answer: 357 and RPC are Itchy and Scratchy.
3: Long answer: The seniority list has been published, but does not go into effect until after the election determines the bargaining agent. I doubt we will ever see it happen. Death before dishonor and all that.
If you use the non-scientific sample of the same eight or nine people (RAH and F9) who post on this and other boards, there is strife, angst and hatred from here until the company finally finishes circling the drain and finally goes down it. At that point, the warring factions will switch from the current rhetoric regarding regional scum on one side and sleeping with the enemy on the other to rhetoric about whether the regional scum or management's prostitutes were the ones responsible for the ultimate demise and loss of everyone's jobs. Neither side will ever realize it was the fighting and that fighting takes two.
3: Short answer: Who wins the election is moot. Both sides have completely lost their minds and it will be the end of everybody.
Meanwhile, BB and WH will pull the ripcords on their golden parachutes and retire fabulously wealthy while the pilots blame each other for their poverty.
Me, I'm ex RAH and glad to be shed of the whole debacle.