We are getting Lost Sphere, Fire Emblem 2018, Xenoblade Chronicles 2, and Project Octopath Travelers. There's also a rumor that Dragon Quest XI will be localized. So yes, the Switch will get JRPG's.
Tales series is coming to the switch plus square Enix has octopath traveler, I am setsuna and dragon quest 11 coming to the switch. The mana trilogy is also available but only in Japan. I think we'll get quite a few of them.