I remember seeing a playthrough of this during Covid and I didn't know it was discontinued sadly till now T-T
But I feel like it could continue with the hole being like the bottomless pit (since I think that's the reference for sure) and since the bottomless pit (I think) has that possiblity to send someone to an alternate universe, Bill and player could've gotten sent to the original Gravity Falls universe and then there's drama! with the residents and Pines family and etc. Idk... I'm just trying to cope that this is never gonna be finished 😭