Uh oh. Team Rocket are back again to steal some Pokemon! But hang on, Ash and Goh realise that the Gacha is gone! Goh guesses that it got broken, as Team Rocket then say, "Correct! Now get a load of this!" as they throw out ordinary Pokeballs, which are revealed to contain... Gourgeist and Inkay?! Team Rocket then explains that when the Gacha broke, they decided to use Pokemon they were familiar with, and so got their Pokemon from HQ, and decided to use them again! Plus Morpeko. Can't forget Morpeko.
That might not happen and instead they'll keep using the Gacha as it got fixed offscreen or something, but hey, I can dream.