The concept of sunsetting, the inclusion of a weapons and armor power level cap that is based on when the item was first introduced into the game, is being put to rest as any weapon or armor that is capable of being infused to max power will no longer be restricted by these expiration dates. The Vault of Glass will return in Season 14 and will launch with a Contest mode within the first 24 hours along with a Master difficulty for the returning raid. Crossplay between PC and consoles is coming but won't see release until Season 15 sometime this autumn.
Updates on Trials of Osiris reward structure changes, the return of Ada-1 to the Tower and other Season 14 changes can be found at the official blog post here.
Photo courtesy of Bungie