That's a possibility, too. The writers seems to have a pretty solid plan for how this will all play out, so I'm not too worried about it being a mess.
That idea actually sounds pretty plausible. Galgo and the mercenaries bail after the events of Prometheus #1, then Galgo bails again after AvP #1 and is followed by Ahab, so on and so on.
I'm really looking forward to this.