Redditor Uberwolf_ points out something that I have overlooked. Not all reprised raids will be available straight out the gate when Age of Triumph launches. Here is his/her explanation:
Hi DTG, I know, I know, a lot of people think all the raids are coming out tomorrow, but sadly this is not the case, trust me I wish it was but it is not.
Bungie SPECIFICALLY said that on the first week, only Crota will be available, then the next week VoG will be available and featured, but you will still be able to play Crota too, just not featured, so on and so forth.
Sorry to burst any of your bubbles, but I’d much rather disappoint you now with the truth, then let you be disappointed with the lies tomorrow.
So here are the release dates for update raids:
Crota’s End: March 28th
Vault of Glass : April 4th
King’s Fall : April 11th
Wrath of the Machine: April 18th
edit: 52:20 onwards from here
Deej : “We begin with Crota, then Vault of glass, then on the third week we come in and play Kings Fall, and then Wrath of the Machine”
“So if you look here, we’re in a setting where the 390 version of Kings Fall hasn’t been unlocked yet”
“The first week of Age of Triumph will send players to the Moon for Crota’s End, while Vault of Glass fans will have to wait until week two. King’s Fall will be featured third, followed by Wrath of the Machine. As each 390 Light version goes live, it will remain playable (without challenges) even when it’s not the weekly featured raid. Every raid will now offer armor with an ornament slot; the gear from Wrath of the Machine, which already had one slot, will now have two.”
And an additional comment from Redditor RiseofBacon:
How it works
Week 1 - CE at 390 w/Featured
Week 2 - VoG at 390 w/Featured, CE also available at 390
Week 3 - KF at 390 w/Featured, CE & VoG available at 390
Week 4 - WoTM Featured and all Raids active at 390
Week 5 & Afterwards - Featured Raid & ALL Raids at 390