Will boards ever leave beta?

Yes, they just need to remove the Gameplay Boards for that to happen.

Soon™

The Boards are a reflection of the game.

The game never left beta either.

From what I understand, there are no devs. So we're left with escaped codes in previews and quotes, staying at the bottom of the page when going through chronological view, poor mod tools, and other issues that the mods aren't even comfortable raising with whoever's above them in the chain of forum command.

So no, Boards won't leave beta, and the broken windows are permanent.