All I can say regarding Tales discussion is that I hope Namco puts in effort into making their Switch Tales game a success overseas. Part of the reason why I think Disgaea 5 Complete has performed so well on Switch is that NISA made the effort to ensure all the pieces were in place:
1) It was the first third party game to go up for pre-order, with full details, on January 13. We got an image of the game case, and all the limited edition bonuses, on that day, and you could purchase a copy (albeit only in North America) that day.
2) NISA has made an effort to push it via social media channels, Nintendo included it in a Direct
3) NISA has been showcasing the game at various events, including Nintendo's own Switch hands-on events. People know the game exists.
Makes you wonder how I am Setsuna would have done if Square Enix bothered to push it instead of releasing a couple of trailers on YouTube and calling it a day. It'd be risky producing it on a game card and no one knew whether there'd be interest in games of its ilk on Switch before launch, but Bravely Default succeeded for similar reasons that Disgaea 5 did, publisher Nintendo put in the effort and the game was of a perceivably high quality that delivered.
If Namco produces a Tales game specifically for the Switch, be it an original title, or an enhanced port, or remake, it shouldn't treat it like it isn't important in non-Japan markets. And if it's a simultaneous release of the next game, they should give it as much attention as they did Tales of Zestiria when that game marked the series' debut on PC.
Given the Switch active userbase right now is going to consist of both game enthusiasts and Nintendo fans, Namco should be in a good position with Tales. Enthusiasts are likely to have engaged with Tales of games before, and Nintendo fans will probably have fond memories of Symphonia on GC and Phantasia on GBA.
