It seems more often that "RPG elements" are being incorporated into games of practically every other genre while the idea of the classic RPG is being discarded/ignored by most publishers/developers (NIS America, AKSYS, XSEED, and ATLUS aside, along with a few others).
I find this apparent shift very interesting, though also quite sad.
Not many FPSes are trying to be Wolfenstein 3D either.
That some developers continue to find a niche audience for deliberately anachronistic product is really more a testament to there being a dedicated fanbase, not lack of one. I tend to see a lot of the JRPGs now as being self-indulgent, much like a lot of modern anime. They're making games that pander to the existing fans, if not specific niches in that market.
There's plenty of RPG fandom now. It just looks different, because the games look different. The tens of millions that pour thousands of hours into MMOs, the hardcore Dark Souls players, the Mass Effect or Elder Scrolls players, and so on. Not that you don't see fervor over Japanese games too, like the availability of Xenoblade or Fire Emblem right now.
Were JRPGs to make a huge comeback - assuming they really went away in the first place - they'd come back looking a lot different.
Though, to me, that's how it should be. Most of the big JRPGs for a given time were ambitious, contemporary projects, not copies of 15-20 year old past successes.