Return letters from the Rising 2019

[Iscah]

So far...

Small letters:
1. Message boards (now canon in-universe!)
6. Minions

Large letters:
1. To a fledgling adventurer, from "a fellow adventurer"
3. Re. Heavensward, from "a devoted Temple Knight"
4. Re. Stormblood, from "a former fighter of the Resistance"
5. Spoiler for Shadowbringers

Is there a #6...?

I'll be interested to try this on my lower-level alt, but most likely they'll just get whatever letters are appropriate for what they're up to in the story.