Sorry for second post as I cant edit the previous, it seems that this announcment is more of a damage control after all the f-ups they did, as the games is very unfinished and will take some time to actually make it work.
Yeeeah right, I guess I'll be playing Wolcen until this Diablo 3.5 releases. Honestly that skill system is nowhere near of that of POE or Wolcen... And they're building this new Diablo off those titles as it was stated in reddit's post. Honestly what seems to be worthwile with this new title is a lore. But we shall see what actually gets in the game and what not.