What ilvl do you have to be to get 385 caches from incursions?

[Sorelai-wyrmrest-accord (Sorelai)]

Here you go:

What's Changing (and Not!) in Season 2

Hi all, We have a series of blogs accompanying the release of the upcoming Battle of Dazar’alor raid, the new Mythic Keystone season, and the new PvP season, offering deep dives into each of those features. But in the meantime, the community clearly has a ton of questions (and some confusion) about exactly what is and isn’t changing. Should you be spending or saving your bonus rolls? What should you expect from the weekly Mythic Keystone cache next week? What’s up with the Azerite vendor? For …

It doesn’t mention Assaults at all. It only mentions that Emissary Rewards will scale. Later there is a post stating that both Emissaries and Incursion/Assault rewards will follow loot spec but that post doesn’t mention scaling at all.