As said before, even
if the inventory will be used, it remains the question if it will have the function of holding your buildings while you're rearranging your village... it's just part of the game to try to fit in everything you need. And it
is possible!
I think it was Herluth who has commented that it is certain that buildings will not be able to be put in the inventory. Apart from that I have raised this question myself and had gotten a similar answer from a higher up.
Designing your town and making everything fit is an essential part of the game and putting buildings away makes it way too easy.
As for
when this feature will be activated, who knows..
It was an idea the devs implemented, then got put in a corner because of more pressing matters.
- L