According to third party key retailer site Green Man Gaming, Ubisoft will be pulling The Division 2 from various digital retailers shortly after launch. It's worth noting that Green Man Gaming, and other third party retailers, offer DRM compliant versions of the games, so Ubisoft's decision to pull the game from those stores is a bit suspect.
Retailer Gamesplanet has a similar notice about the game, which reads:
Sadly, we have to announce that Ubisoft will not allow digital third party stores, such as Gamesplanet, to sell Division 2 after its release on March 1, 2019. After this date, the game will digitally only be available through Ubisoft's store and another exclusive digital store. This will also be true for all upcoming game content such as Season Pass, Extensions, etc.
Which means Gamesplanet and Green Man Gaming will not be able to offer support to customers after the release date. Essentially forcing customers to buy the game through Ubisoft directly or from, we assume, the Epic Games Store. While that means more money in Ubisoft's pockets, it's a major blow to small retailers, and to Ubisoft's customer service reputation as well.
The Division 2 releases for PC, PS4, and Xbox One on March 15, 2019.