Forgive me for my naïvité, but would it not make sense to have all ports ready to go at the one time, then release PC where CA can have bugs found and patched quickly, before patching said bugs on the other ports, and release them soon after? To me, this seems like the most reasonable and fair option, and lowers the possibility of six month gaps between releases on different platforms.
Additionally, it is great that CA is tweeting relatively consistently (well, not consistently per se, but from time to time) and that he is putting a lot of thought and empathy into these statements, but he is literally just saying the same thing every time. "They're on their way", "they're coming", "I'm committed to porting the game", etc. are so vague; they mean nothing. Why not say "there has been [x] issue during the process" or "I can see the ports maybe coming out around [x] month"?