Break the Limit
I expect the episode to go like this. First third is establishing the old characters and Pokemon, bringing Gou up to speed and meeting the old gang, second third is the Kiwae battle, and the last third is catching Alola Eggesecutor. If paced well enough it should be a well rounded of very packed episode
There really should be a running tally of how many times regions and cities have been visited thus far tbhI mean, we're only 36 episodes in. I'm sure they'll go to every region a few more times by the end of this series.