Question: can goten and trunks go ssj2?
Answer: In non cannon of dragon ball after the future yes he can and he does also with a bluntz wave device he and trunks after fusing into gotenks can transform into super saiyan four gotenks. Ofcourse this is noncannon . How strong would Gohan be with his Ultimate form and SSJ4 together compared to Super Saiyan Blue?