>>531073082
We've seen choral vex in the promotional stuff, so a raid revolving around whatever Maya's doing is a safe bet, especially with the official art for VexNet armor.

>>529936448
Because Brookes or one of the other writers played Control, they decided to incorporate the CIA performing time travel experiments in the 50s into the story via Lodi and his magic space train, which is the springboard for the plot of the expansion. This was posted around act 2 of Echoes and has been accurate enough that I don't see a reason to doubt it.

>>529637867
The train's pre-Golden Age according to leaks from about a year ago, so he might actually be from the 50s.