As far as the first right of refusal... are you sure XJT management would want them? From a business perspective they can't just keep them if they don't have a solid plan to make money with them. Keeping them to spite CAL may sound good from an emotional standpoint, but business decision shouldn't and usually aren't be made that way. Without a new CPA with UA, DL, or someone else, what would they do to with them? More branded flying? Doubtful. Management will do what is necessary to remain profitable, and that may include getting smaller as evident by the industrys recent events. Beyond CAL who wants 50 seaters anyway?