While not specifically discussed, it was also heavily implied that you will be able to seek out Watchstones which PoE goods can add modifiers to that part of your atlas as well. Sextants can also be applied to the Watchstone rather than individual maps.
Sextants are no more level restricted, but are rebalanced to have much stronger modifiers coming from higher grade sextants. Sextants also have been renamed to Awakened Sextants for every tier, Prime, and Straightforward. They could no longer be upgraded via the vendor, meaning higher tier sextants could be more costly than simply three times the grade below it.
Zana doesn’t longer offer you the option to update maps. This is presumably because of the simple fact that maps no longer need set tiers, and may be updated with the Watchstones. Zana will sell Shaper and Elder affected maps, which function as the sway that is old would. The Shaper and Elder narrative lines are replaced by the new boss story lines, meaning that these Shaped or Eldered maps will be the only method to attain the items that are observed inside Shaper or Elder influence.
The Synthesis boss maps will now drop as unique maps, allowing players regular access and not simply hoping that Zana provides them. Particular maps will have a level that is varying based on where they are found, making all distinctive maps useful at all points in the game. Blight has already been added to the game as a core mechanic, and like Breach and Abyss, it is going to appear 10% of the time when you conduct a map. They also have tweaked the benefits in buy poe chaos orbs order that an Oil or a Blighted Map is certain to drop each single time you run an instance of Blight.