Bungie had originally decided to delay the Prestige Raid for Destiny 2 because they didn't want teams to cheese a known exploit, but after trying to fix the issue and failing to do so in good time, the studio has decided run it next week regardless, but with the added caveat that they've worked out a way of determining whether a team has taken the easy route. Reading between the lines: Bungie is watching you.
"No, the Prestige Raid will still begin on October 18 at 10AM Pacific," comms manager Cozmo wrote on Bungie.net. "We don't want to make you wait any longer to experience what the raid team has cooked up for those of you who enjoy a challenge worthy of your talents."
"One thing we did accomplish as part of our investigation was the creation of a way to verify a clean finish. We can now detect if any teams use this exploit to gain an advantage. This will take some extra time to verify, but we will be able to crown the winners with the confidence they deserve.
A fix for the exploit is still being worked on and will be added in a future update, and next week the studio is planning on detailing Raid Challenges that should also mix things up for teams gunning for the best loot.