Anyway, "circumstances" implies to me that there's a reason for the lack of a localization that's more complicated than a simple lack in faith in a western release's sales potential. It might just be as simple as the western localization team only being able to handle one game at a time though, and with the 3DS getting pretty old at this point there might be a concern that it'd be too late to start translating that version once AA6 is done.
"There's this thing coming out called NX and we would rather port it to that one"
I don't think that makes a lot of sense.
I do hope it might get a second shot at localization in a similar way. (Not the NX in particular because I do think that's a home console only, but on Nintendo's next handheld.) There's some precedent with that with the DS releases. That and a mobile release.
I think it'd only make sense if they do plan on turning it into a series to make the first entry available on the new platform it'd be on, since I assume Japan won't be getting a DGS sequel in Japan on the 3DS at this point.
By no means that'd make it a guarantee for localization of course. It'd just extend the potential timeframe for a chance at localization since the 3DS is on its way out.
