WE’VE GOT CONFIRMATION!
According to CartoonNetwork.com’s schedule, Generator Rex will be on again starting December 26 to air the final episodes of season 3. (Though it looks like, for whatever reason, “Hermanos” is not included with the rest.) Hopefully CN will actually stick to this schedule and not make any changes to remove eps.
If you intend to watch, please make sure to check your local listings for the right time. (What we’re showing here is Eastern.)
EDIT: “Enemies Mine” is also not part of the listing, unfortunately. (Thanks for catching that, Neopuff.)