I guess with the time jump it's actually possible there will be dinosaurs
Also I'm looking forward to them explaining about Black Rock, imo there's gotta be a good story connected with that...
After rewatching season 3, I hope they do something big with Ben's friend (The little girl who befriends him at DARMA and gives him the hand carved statue on his birthday). I get the feeling she could become a big part of the story soon...