It’s the new entry in a series of somewhat niche JRPGs that is celebrating its 25th anniversary this year. I haven’t played most of the games in the series, but I played Tales of Zestiria (some serious pacing issues aside, it’s a great game) and Tales of Berseria (that I absolutely, absolutely loved), and mostly because of the latter I’m so excited about Tales of Arise.
There’s a demo for Tales of Arise (not available on PC, unfortunately) that should give you a rough idea of the gameplay. But it’s a series well known for story and characters too (or it wouldn’t be called “Tales of…”), so the demo only shows a very small part of the whole package. Still good to check if it’s something that might interest you, or, in my case, to help pass the time until the actual release. ;)