I don't think a camera alone be the deal, i hope to see a new and better one to replace the old one that nobody uses nowadays because screenshots are better, i think that a camera would be a nice adition but as part of a bigger thing, as a complement for a new game-play, after all as skogseide said this is a hunting game, not a nature photographer game, but both things are not incompatible, after all the photographic camera has been part of The Hunter since forever.
Now if we get a new camera and that alone its the new "big thing" alone, i am gonna be as surprised as anyone here, because as much i love to see a new camera i obviously prefer hunting focused game-play. Camera and photo as a plus, a side addition, not as a main feature, weapon modifications, render distance, new animal I.A, etc that is a main feature.
Now all that said, i see few chances for a render increase, i don't know if weapon modifications can be done in a effective way, and the clues show not much to aim for a new i.a for the animals, we only see new nice looking pictures, a sight and that new items will be implemented. We are in a limbo here.