It's possible, this episode can be Write and Wrong. But it is also possible that it may be another new episode. Who says they'll send the usual two episodes a month this time? Because of the coronavirus, they have had to postpone Purrfect Gig and WrIte and Wrong until next month and possibly broadcast them in April along with other new episodes. Maybe 4 new episodes, like in the old days. Do you remember that time when they broadcast 4 or 6 episodes a month from The Loud House? Here, it could be this. 😉
Stella, Grouse, Chaz, Lincoln and Scoots are all ok, they don't have anything so useless. They are all very interesting and cool, except maybe Grouse because of his bad temper (in fact I don't really like this character) but this does not make him a truly useless character. After all, he has a good heart, even if only a little excessively grumpy. Only Aunt Ruth is decidedly useless, she appears yes and no on short occasions, without any really fundamental development. If not to mention also her ugly fool in People Ruthless, an extravagant episode that has disappointed most of the audience.
You should have added "maybe" in the third category, because it's not 100% sure if Arturo can stay "permanently" in the city, that is forever. Yes, he stays in town for now, but he never said forever. At least for now. He said for a while. So, it is possible that he will go to visit Peru again in the event of a medical emergency, as a health mission, for a few months then back home again. And then, after all, Great Lakes City is not his real birthplace but probably Royal Woods, since he said he visited that city for the first time, in Operation Dad. it is possible that he will remain in Great Lakes City until Ronnie Anne has come of age to go to college. Children always need their parents .... teenagers and young adults, on the other hand, a little less (for this reason, Bobby has not shown himself desperate or angry when his father says to go back to Peru in Operation Dad, unlike his sister), but that doesn't mean they don't love their parents anymore. They simply entered in the "cut the umbilical cord" phase, to become more independent and autonomous.
This seems very interesting, but....why in live-action? If they wanted to do something special They could make it at least in 3D as In "The Peanuts Movie". Or a mix of 2D an 3D as in "Klaus". However, one should not judge a film just based on description, maybe it could be surprising of what it seems.