As an immediate fix, Bungie is lowering the Prestige raid level back down to its previous state from vanilla Destiny 2, but the developer says it is investigating the possibility of creating a third difficulty tier.
While it appears that Bungie did not anticipate the backlash it received over its original plan to raise the Prestige raid to the new level cap (which also inadvertently made the “The Prestige” trophy/achievement as well as the Legend of Acrius quest impossible to earn without Curse of Osiris), the plan in the future would be to make three difficulty tiers for each raid:
If a third tier was added today, then a normal Leviathan raid would recommend power level 270, a Prestige mode would recommend 300, and a third tier would recommend 330. In theory, that 330 tier could even continue to scale up with each new expansion release, if Bungie decided to do so. On the other hand, it could be locked to those three tiers, with the Eater of Worlds raid lair being the next raid content to add a third difficulty mode appropriate to the power levels of the next expansion. For now, that 330 level has yet to materialize, and Bungie hasn’t put a timetable as to when a third power tier might be added to the game.
The aforementioned changes to bring some of Destiny 2’s activities back down to levels of vanilla Destiny 2 and unlocking them for those without of Curse of Osiris are scheduled to be included in the update launching the morning of December 12.
Destiny 2 is available now on PC, PS4, and Xbox One.
Source: Bungie