I can only guess. The firepit is a rotisserie, maybe a new way of cooking on fire? Might add more diversity to food. Under that is obviously wheat that's in one of the future updates. And the snowman is a snowman. They're adding snowballs in the future so maybe a winter-only amigo to keep up sanity? And the trophy may be a new achievement system.
ONLY GUESSING! But that's what I can gather from reading aound.
I know the Wheat exists and so does the snowman, but an old version of a BBQ? What will we do, capture rabbits and many creatures tie them up with rope and cook them? Not bad. Kevin also did say a snowman would be in the game. As for Wheat, I don't know if it'll be inplimented, but there is a mod on the Steam Workshop that uses wheat.