So far the game looks like a mix of Suikoden II with Octopath Traveler. It also seems like theres gonna be a lot of things from II brought to this one, the fortress building, the cooking minigames and some new things.
I played three when i was a kid but not recently but i did pick up 5 a few months ago since i never played it. They smashed the kickstarter goal, was 500k is currently at 1.8 million.