The Division servers will be coming down on October 25th for the deployment of the v1.4 update that brings a massive number of changes to the game including UI improvements and a huge number of gameplay enhancements. In addition, a new feature called "World Level Tiers" will be added that will allow players to choose what level enemies will be encountered that will also determine the quality of reward gear that is dropped.
Big changes are also in store for the following:
- Activities, Loot & Rewards
- Gear Stats
- Skills
- Weapons
- Gear Sets
- Massive bug fixes
Read the full comprehensive patch notes on The Division forum.