The writers don´t have time to develop a well though conclusion to a 26 year old beloved character like Ash. They are too occupied with their super duper original and fresh characters Riko and Roy who will revolutionize the anime industry. Please understand.You know what would have worked? If Ash “caught” Latias, of it’s own choosing, but Ash allowed it to roam freely, like Goh’s Suicune.
Meanwhile, Latios does not wish for this, but can still be with Latias. That way, it shows Ash still has a bit to learn to befriend Pokemon like Latios, but it at least acknowledges he has come leaps and bounds when a legendary wants to be “united” with him.
Also, I have to ask a question. The whole point of this mini-series is to show that a Pokemon Master can bond with any Pokemon. But, when has Ash ever not been good at that? He has more knowledge and is wiser, but the outcome remains the same none the less - he’s just more efficient at it. He’s befriended a Zygarde and a Solgaleo, Azelf recognises him as the embodiment of Willpower, Tapu Koko acknowledges him, and I guess Lugia too…Don't you think the Mewtwo from that one Journeys episode would be a more fitting choice than Latios and Latias? A Pokemon that wishes to be excluded completely from humanity, whereas another has been shown to live near them?
Ash and Team Rocket will get an open ending so they can be brought back if the new series fails.Interesting that Latios didn't even gain any respect for Ash in the end. I like how they are willing to show that not everyone will be nice to you just because you were nice. Maybe they didn't want it to be too sweet.
Then there is the conflict with Team Rocket. Not sure where they are going with this but I have a feeling they might give them a special later? I wonder if this means other characters could also be given special episodes. I don't think there is enough time to give both Ash and Team Rocket a good conclusion in the last episode.