Typically when wood warps it doesn’t un-warp on its own when the humidity changes again so I would guess not. Although from TFA it looks like they’re investigating reversibility:

> The team is also exploring whether the morphing process could be made reversible.

Considering that the water would add a significant amount of weight, a chair that works in reverse would be kind of interesting: Arrives as a flat, light piece and once you placed it in the room you need it, you sprinkle it with water to make it unfold.

Might even help against back-issues for office workers as they'll have to interrupt their work to re-moisten their seats every so often.