Bungie just announced this in their weekly Destiny news update, This Week At Bungie: https://www.bungie.net/en/Explore/Detail/News/50006
>DUST AND ECHOES
Almost nine years ago, stats and files from our previous franchise, Halo, stopped getting updated on Bungie.net. Since then, all stats, files, and other data from Halo 2, Halo 3, Halo 3: ODST, and Halo: Reach have lived on in remembrance at halo.bungie.net.
On February 9, the halo.bungie.net website will be taken offline permanently. Everyone is welcome to save their stats and files, however they can, if they’d like to save anything. Please keep in mind that our News articles, Forums, and Groups were imported into the current version of Bungie.net back in 2013.
It feels like the end of an era. AFAIK none of this stuff got carried over into Master Chief Collection and Halo Waypoint barely has anything.
The 2017 version of the game is free to add to your epic games account this week.
*Customization content released after December 20, 2019 is not included in the Celebration Edition.
https://www.epicgames.com/store/en-US/product/star-wars-battlefront-2/home