The Latest Release

Aside from anything else, is Assassin's Creed: Shadows a good title? It doesn't tell you much, not that many of those titles do. Odyssey, Valhalla, and Black Flag give us a sense of the setting, which is why I can remember them. I'm not sure it's important that we remember them, but the real problem with Shadows is that it sounds like it could easily be a spinoff, possibly a mobile game.

Tournament Edition

Every fantasy, science fiction, and romance book ought to have a spinoff about the characters in a fighting tournament. The exception is stories about fighting tournaments, which must instead have a spinoff about a cooking tournament.

Non-Multi-Million Idea

Wheel of Thyme, a channel/stream dedicated to reproducing Wheel of Time recipes. That series didn't exactly have a Redwall-like focus on food, but its name is so much more flexible.