[X] Continue previous plan
Then again, he presumably would still want to establish contact with Arachnid (if only to re-download the Great Seal once he does all the preparatory work), and he knows the Dragons won't have shown up just yet. So maybe it's fine. We'll have to wait and see, I guess!
Not all the knowledge. In particular, I noticed in the main part of this chapter that he doesn't have his recently acquired insight that the Great Seal failing was probably caused by the skytowers given to the Pangolins, so that (since that presumably won't be happening this time around) it might be decades or centuries more before the accumulated erosion from Conjura/storage seals/etc. results in Dragon release. In which case he might gather all the Clan bosses for nothing and waste his reputation for when his inevitable mass seal usage on the Seventh Path does cause the release of the Dragons, only later.Bravo! They are all such a delight.
Hey, readers! Who's up for abandoning the α timeline and shifting the narrative focus over to β full time? There's nothing exciting happening in α right now -- well, nothing that anyone cares about, I'm sure -- and just think how much teasing and humor we could get from β! Plus, Hazō would be back at the start of his adventure with all the knowledge he gathered in the original timeline!
Then again, he presumably would still want to establish contact with Arachnid (if only to re-download the Great Seal once he does all the preparatory work), and he knows the Dragons won't have shown up just yet. So maybe it's fine. We'll have to wait and see, I guess!