No, what JRPGs need to do to be "liked again" (they still maintain a sizable fanbase, the gaming community has just expanded to include a lot of new people who don't care for them) is to do all the fun, crazy, interesting things that people liked JRPGs for in the first place. When I look at modern JRPGs, with their predictable assemblage of worn-out anime archetypes in increasingly samey scifi/fantasy worlds, I have a hard time recognizing any trace of Breath of Fire 3 (a game which opened by putting you in control of a baby dragon rampaging its way through a mine full of helpless laborers), Shadow Hearts 2 (a game in which your party included a luchadore wrestler vampire and you gained new powers by visiting a graveyard in your soul), Skies of Arcadia (in which you control a crew of sky pirates exploring an enormous fully 3D overworld in a customizable airship), or the PS2 Devil Summoner games (in which you played a detective who captured demons as if they were Pokemon and used them in excellent real-time battles to solve cases in Taishou-era Japan). It was that kind of crazy storytelling and world-building, combined with a willingness to experiment with gameplay, that made the good old JRPGs what they were, and after a glut of samey titles in the PS2 era killed off a lot of interest in the genre, especially internationally, most developers became increasingly afraid to fund that sort of bold and imaginative effort.