For those of you who don't remember, Jaque went with Roamin when they were teleporting out of the sea monster's belly, and Petey stayed behind because he wouldn't let Roamin kill and absorb him.
Jaque is currently unaccounted for, and is either still at the fortress Roamin just left, or hiding in Roamin's inventory.
Petey is presumably still in the sea monster's belly, and if you remember, the sea monster was captured and brought to the surface whole by kobolds.
So it's fairly likely Jaque will just show up with the main party now, and Petey will reappear during the next encounter involving kobolds.
Edit: Also, I must say that at first I was disappointed to see Rob going "oops let's just cheat again", because it's really lame when somebody does that in a real roleplaying campaign, but when it turned out that this is actually a plot device in disguise, I was happy to see it wasn't a reckless retcon after all, but in fact an important sub-story that's been planned as far back as episode 6. (And as much fun as this series is, we can always use more planning.)