You’ll receive less items, but more useful items.
This week’s Marvel’s Avengers update is focused at least somewhat on gear progression. According to Crystal Dynamics, players should now find leveling their gear score to be more consistent and impactful.
We have made a number of improvements for gear in an effort to make gear drops more impactful and more consistent. These include improvements to drops from enemies, missions, chests, as well as what vendors sell.
As a result of the changes players can expect to find less gear but for each drop to be more useful as a result with gear rarities having a much more noticeable impact on attributes. Chests are less likely to award common items, with gold chests no longer containing common items period. Some missions have been changed to scale rewards with a player’s power level, and hero set gear should no longer have worse attributes than epic tier gear.
The update also introduces champion levels, a post-50 advancement system that awards new champion skills.
Source: Marvel’s Avengers