Update: Video game market analyst Daniel Ahmad revealed some additional info on Twitter regarding the changes. China will have differences including a separate server and different cosmetics. Presumably this is so cosmetics can also comply with any standards.
The single global version will still have differences per region. China will have its own servers and cosmetic items for example.— Daniel Ahmad (@ZhugeEX) November 2, 2018
Ubisoft announced that Rainbow Six Siege is coming to Asian territories and with that there will be some cosmetic changes that will arrive with a single, unified version of the game.
Ubisoft explained in a blog post that it will be pushing a "global" version of the game which will be unified. This is opposed to operating two parallel builds of Rainbow Six Siege simultaneously. "
By maintaining a single build, we are able to reduce the duplication of work on the development side. This will allow us to be more agile as a development team, and address issues more quickly," Ubisoft writes.
Ubisoft says that this will help Rainbow Six Siege be "future proof" by adapting a single version of the game to any global regulations. Ubisoft also says the "core" of the game – namely the gameplay – will not change. However, some visuals will be changed to lessen the violence, gambling, and mild sexual content. You can see the changes below.
While not explicitly named, there's reason to believe that the changes are a result of Rainbow Six Siege's expansion into Chinese territories which has been known to result in cosmetic changes to video games. PlayerUnknown's Battlegrounds for example was also altered visually to meet Chinese standards, and things like gambling are particularly restricted.
The Rainbow Six Siege subreddit has reacted largely negatively to the changes calling the alterations "censorship," and are worried about the full extent of changes that could come to Rainbow Six Siege's visuals as not all of them were detailed by Ubisoft.
We'll have more information as it becomes available but check out our Rainbow Six Siege guide for a quick overview of Ubisoft's live-service military shooter.