Star, Stan, Ford, Mabel, Marco, Dipper an any more vs the Forces of Evil

Stanford and Stanley travel, and find a mysterious portal that leads them to meet Star and Marco, and they dimensional scissor to Gravity Falls, 2021. But This story has a turn. Bill has regenerated, and has gone through time and space trying to find Dipper, the same paranoid, awkward, but awesome boy we left of but he's starred on GHOST HARASSERS, Mabel, a social media phenomenon because of her website MATCHMADE!.com, and a girlfriend to Mermando, the divorced and underwater GLOBNAR winner who wished he was a human, and won Mabel's heart. Stan, a man who in bills perspective should die, and Ford, a real know it all. All are prepared for anything. Or are they?