This looks as amazing as expected. Fromsoft open world will be very different than normal open world. I'm guessing it'll be one vast field area with ruins to explore that connects to more isolated areas, kind of like Ocarina of Time. The story beats about defeating lords to collect elden ring pieces are very similar to DS3 though. Not that I mind, the stories are just vehicles to kill bosses in these games, the lore in the item descriptions is where the games shine.
In terms of mechanics, looks almost like for like with DS3. Maybe a bit faster than DS3, not sure if it's as fast as Sekiro. There seems to be a jump button; some kind of stealth and mounted combat are involved too. And of course, the horse can double jump. Hope to see raw gameplay by TGS.