Future Gohan (BH Saga)

Future Gohan is the alternative form of Gohan from the future that apears along side Trunks

BH Saga
In the BH saga Future Trunks joins the battle versus Bio-Vegetto along side Bardock, Tullece, Goku, Raditz and Broli, along with him is Future Gohan, after the battle, they are not seen again, but they most likely went back to theire time