Sometimes more of the same foundational elements is PRECISELY what gamers want and need. You don't automatically have to re-invent the wheel every time. They did that the first time with God of War when they gave us a whole new formula for the God of War series, a new style. Now why in the world when it proved so successful do you automatically expect them to up and abandon it? They will give you new enemies, they will give you new areas and locations, a new conflict, new enemies, may bring back characters for a specific purpose to further tell a new story. At any rate, it represents an entirely new adventure. Miles Morales, though that truly felt like an expansion rather than something entirely new, it still served as a nice warm up act for the next big thing spider-man 2.
God of War, Horizon and even the Spider-Man games need not completely reinvent the formula that they've already proven works to give us new, exciting adventures in each game's respective universe.
Halo Infinite in my opinion is undergoing the same transformation in its core story campaign as what God of War or even Gears 5 did when each of those transitioned to something more hub open world like. That change for Halo Infinite is a huge part of why I'm more excited for this new game than any in years. And depending on how well it works, you can rest assured that any and all future mainline Halo titles will lean heavily on the foundation they are building with Halo Infinite. It's part of the reason they're calling it a platform for the next 10 years of Halo.
What Insomniac started with Spider-Man is the blueprint going forward for all Spider-Man games, just as God of War 2018 is the blueprint for all God of War games for the forseeable future. We don't know based on that short trailer there's no new gameplay, we don't even know there won't be better graphics (cause there already are, but it's not releasing yet, so it has time to become even better), and we surely don't know from such a short trailer that the game's story won't be new or good. After playing the first game I don't know how ANYBODY can seriously doubt what Santa Monica is getting ready to give us with this game. And I say all this as someone who didn't find Sony's show that impressive, though it had some nice stuff in it.