According to Rod Fergusson, secret announcement coming up with the stream.https://twitter.com/RodFergusson/status/1648410817757577216
These exclusive participation rewards for helping play Beta are a great thing and I really hope the rest of the Blizz IP leads internally start doing this.
it's diablo 3.5. the only end game i was excited for was Dungeons and they look nowhere like real dongeons , but mostly like small boring cave.Paragon tiles need to be rework (path-wise, and stats-wise).Plus it does look like you are only able to play a small number of builds (whose are controlled heavily by dev).I'll wait for now, and probably check the 2nd season to see if they are really live updating this game.