Really great timeline!

I always asummed Union Jack appears in collide because three possible options; 1 he was teleported outside the medium so he's the same from the preretcon timeline?? or 2 gamzee went back in time to do that again once free or something... or 3 gamzee didn't send the pumpkin with lilcal, lilcal just did that on their own or someone else did that for whatever reason