Most people are hyped, just that hype creates worries, people ask themselfs questions like "What if there is no... in the game?" and they start to worry about anything.
"What if there are no clubs in the game?"
"What if the map feels small?"
"What if the story sucks?"
And the first place people think to talk about it is the forum.
At release, it will be worse. Topics will appear about details people are dissapointed like fingerless gloves as an obvious examples. And the topics will be like:
"You can't raise convertible's roof."
"Why does... dies?"
"I've already explored the entire map. Dissapointed."
... when the people writing these topics actually loved the game. This forum will always stay the same. Moaning, worries and troll topics. Forever.