Is Future Gohan canon?
Is Future Gohan canon? He is canon. He is from the same world/future as future Trunks. Although he died before Trunks achieved super saiyen.
Why did Dragon Ball make Gohan weak?
The amount of time that’s passed in Dragon Ball Super is apparently open to interpretation. In BoG, Gohan was probably still the strongest or at least on the same level as Goku before he goes SSJG, hence the reason why they made it a point to have him step in as if he was the only one who could stop Beerus.
What is Gohan’s power level on Namek?
Dragon Ball Z
|Krillin (vs. Frieza’s soldiers)||1,500||Vol. 21, #248|
|Gohan (vs. Frieza’s soldiers)||1,500||Vol. 21, #248|
|Vegeta||19,000 to 24,000||Vol. 21, #249|
|Namekian Warriors (suppressed)||1,000||Vol. 18, #214|
Did Gohan lose his mystic powers?
Yes it was explained during this arc (I don’t know the exact episode as I watched it when it was airing) that he lost control over his powers due to him becoming rusty. This resulted in him starting to train again with Picolo to regain the powers he once had, including his mystic form.