After the angry fight he was involved in, Izuku Midoriya was really pushed over the edge. And overcoming his physical limits had very important side effects, as we saw in My Hero Academia 298.
When Bakugo awakens and all the other heroes begin to recover from the injuries they sustained during the long battle with the villains, alone Izuku Midoriya has not woken up yetand alerted both the explosive friend rival and the master All Might. Surprisingly, Kohei Horikoshi decided not to focus on the protagonist of My Hero Academia in chapter 299, but on the duo Hawks - Best Jeanist. Did the author specifically choose this chapter?
Horikoshi may have put Deku aside temporarily to begin Chapter 300 with him as the protagonist along with One for All. What could happen in My Hero Academia 300?? Well, a focus on Deku and his relationship with the amazing quirk he currently has. After unlocking two more powers from the previous owners, it is possible that the strain on his body was excessive and therefore the protagonist needs to recover slowly but not beforehand shows us the previous full owners in the remains of One for All.
Exactly for this reason there could also be a retrospective that further connects the history of All for One with that of the first owner. My Hero Academia 300 will be released on MangaPlus on February 7th 2021 at 5:00 p.m. in English and Spanish.