I think this could be both a good sign or a bad sign.
The good way is that it could make for an excellent singleplayer campaign.
The bad way is that, if they do a singleplayer campaign in the vein of Uncharted (extremely linear), the game might end up being uninteresting after a playthrough.
So here's hoping the game will be something more open, full of environments that beg to be explored!
But, either way, I'm not getting excited before we see some gameplay.