So, I'm curious about some things. Imma list it all:
1. Would Inoichi ever use his Possession Jutsu on Katoshi at some point?
I'm curious if he would see Hitoshi when inside his head and how it'll go. Orochimaru did say Kakashi's exhaustion is similar to Yamanaka's aftermath of overusing the jutsu.
2. I wonder if the Ino-Shika-Cho supports Kakashi or is more on curious-of-their-Kouhai stage. Inoichi and Shikaku was almost dismissive when they meet Katoshi. But then seemingly look out for him when he needs help with jutsu. Is it considered spoiler?
3. Could Katoshi be good enough with Kenjutsu to use it in the future? I mean, sure he said it corporates Hatake Katas to Kenjutsu, but how far will he master it?
4. Does Brainwash need to use Chakra or it can be used with Chakra to enhance its effect but can also be used without sim to body enhancement with chakra? Katoshi did say back when it's a quirk, the identified obstacle is mental blockage with how far it can go. Genjutsu is rampant and Sensors are likely to be very perceptive of the use, will it be explored?
5. I wonder if most of Katoshi's peers truly fear him or its something else. I mean, sure, he can use KI but then, there are Fangirls. I'm under the impression it'll be like when Uchiha Masacre, it'll be more rampanton Kakashi's end.
6. Would he or wouldn't he adopt people into his clan in the near or far future if the whole Sakumo situation is stabilized? Would Sakumo even need to have his name and efforts cleaned? In clan politics, surely Katoshi if he had support from Clan Heirs both major and Minor might be able to use his clan name and status to take in people into his clan if needed?
7. Is it possible for his pack to take in non-canines as long as his own potential pack came from the same origin and took in an unlikely species to be part of their pack? Also, how would Katoshi gain more than just Pakkun as pack summon?
8. Will Katoshi's Kekkei genkai notebook make an appearance or have its content revealed to other charas? Sounds like it has loads of potential. Or maybe he'd share it to his fam?
Ooooooh so many questions! And I'm super pleased to see that you're kind of anticipating my plot points. It means I'm doing a pretty good job seeding ideas and foreshadowing!
There will be Yamanaka stuff, that's why Chiyo exists! Though Inoichi will be involved too probably.
Ino-Shika-Cho are friendly, but the political allyship is a little more complicated because they are not currently clan heads.
He will be obligated to use kenjutsu as Konoha starts sending him to conflict heavy areas. Non lethal options just ain't going to cut it in open war.
Brainwash takes the path of least resistance and operates via the chakra system (which, remember, combines both physical and spiritual energy). But in a pinch (and after more training) Kakashi could theoretically bypass his targets' chakra coils and go for the spiritual energy/mind the way he does in mha universe.
Kakashi's peers are kids, so they mostly mirror the adults around them. So yeah, some of them really are afraid (because experiencing KI for the first time in a place where you should be safe is traumatizing) but most of them don't really understand.
He doesnt need to clear Sakumo's name because of the way he went about announcing his death. Though rumors already planted are difficult to weed out. As for adopting people into the clan, that's spoiler territory!
Yep. It's gonna come up a bit later :)