It will probably be great, but I'm not sure it should've been done. The first one just felt like a standalone experience that should be preserved.
I think they've succumbed to pressure, as I'm pretty sure they said for a long time they had no intention of making a second.
I just think with this, and the Crash thing, games might be going slightly the way of Hollywood films, where if it's an easy money maker, they'll make a sequel or remake of anything popular, sometimes damaging the legacy.
I guess Naughty Dog is particularly guilty of this right now with TLoU, Crash & Uncharted spin-offs.