Stage 4

No one reached Stage 4, so we didn't get to see the ascent up Midoriyama. We can assume that after Nagano won in season 17, the climb up the tower must be quite a bit harder now.

We still haven't seen the redesigned Midoriyama. I'm sure it will be quite a bit harder, just as the two-part climb was harder than the straight rope climb after Akiyama won in season 4.