I'm blown away that FromSoftware was able to develop and release the SotE expansion within 2 years. And that's not even accounting for the resources that went into AC VI during that timeframe. Personal issues aside concerning the lore and lack of polish in some areas, this is a tremendous amount of content to produce.
Personally, I think the expansion is just around the right size of game I'd like for them to make moving forward. They're not stuck in development for half a decade and while delivering a satisfying open world experience that doesn't take 100+ hours to clear. Not everything needs to be open world, but I think this is right amount of scope for future projects.
Open worlds aside, I'd really like for them to commit to something like Sekiro with the focus on narrative, tight level design, and even tighter combat design. I still believe this is the best sword combat that the studio has ever implemented, and using the Deflect Hardtear found in the SotE expansion has me doubling down on this.