Uhh, Japan practically invented the "ARPG" genre with Dragon Slayer, Hydlide, Ys... and DQXI naturally sold pretty well in Japan. Most of my expat coworkers who still game do prefer Japanese RPGs over all, but it was surprising when one of them mentioned he liked Witcher 3.
This was addressed; I was wrong to claim making something an ARPG was westernizing it. My main point wasn't really to do with westernization though, more that many of the original JRPG series abandoned the style that is still known as JRPG. A lot of that has to do with trying to appeal to the West more, which is why I mistakenly labeled them.
As a long term Japanese RPG player, the only series that really westernized the last few years was FF (which is of course the one RPG series that is known for drastically shifting things up between games, and also the most popular in the west). And of course the influence goes both ways - how many western devs talked about wanting to make "the Dark Souls of _____"?
I do think last gen Japanese devs tried and failed to appeal to the west in mostly superficial ways, (yet I also think there were lots of great JP games last gen too, especially on handhelds and the Wii) this gen it's more that they have been less afraid to embrace their traditional strengths and also adopt trends popular in the west that they have a historical precedence with (BOTW being a callback to Zelda 1's open endedness for instance).
But I'm still surprised how quickly people turned on Bioware and Bethesda, after tooting their horns so much last gen. I played Fallout 3 and the first 3 Mass Effect games - are the new ones really THAT much worse?