I haven't read any of the reviews, but that's good to hear also.
I like when a series feels complete. Personally, I thought Metal Gear Solid 4 was a perfect send off for the series, then MGSV happened. To be fair, MGSV had absolutely wonderful gameplay and game design, but the narrative of Big Boss and the Clones just didn't seem to need more layers after MGS4.
God of War 3 felt like a satisfying conclusion to Kratos' story, and I'd be bummed if Kratos returns in a new God of War game. I love that character, but his story felt complete.
If Uncharted 4 is Nathan Drake's final adventure, and it feels complete, then that's awesome. I certainly wouldn't be against more Uncharted games, with new characters, and possibly even set in a different time period. I would not be adverse to an Uncharted game starring Victor Sullivan and Katherine Marlowe, that takes place in the 1960's. That could be a lot of frigging fun. But then again, I'd love to see Naughty Dog work on a new IP. I'd kill for a film noir, 1950's style detective story done by them, or even a cyberpunk future, Blade Runner style action/adventure game from them. They have excellent story tellers, artists, and programmers, so whatever they create is going to be high quality, I'm sure.