Vintage Characters?

Is the Prophet of Regret, the Old Arbiter, and Forge playable online via in game ‘unlockables,’ or will they be a part of some sort of downloadable content to be released?

You can get forge now by searching in the xbox store.

https://www.microsoft.com/en-US/store/p/Leader-Forge/C0WTTQLHMQK9

When did they announce arbiter and the prophet?

Are the old Arbiter and Prophet of Regret are confirmed or what? By the way I just got Forge on the link thanks. Here’s the link.