Can we consider the filler arc featuring Raiga in Part 1 as canon? According to the manga, Raiga's story ends with his death at the hands of Might Dai. But in Boruto, Raiga has a daughter named Buntan. For this daughter to exist, Raiga wouldn't have died at the hands of Might Dai as in the manga version. I haven't watched the anime episodes featuring Buntan, but I heard from someone that she wants revenge on Naruto for killing her father. So, would this make episodes 152-157 of Part 1, the "Kurosuki Family Removal Mission," canon?
In those episodes, Lee was able to react to lightning. That could be a nice upgrade.