Scaling of Old Gems

[Justno]

I know many people had answered this already but I would like a devs confirmation on this before I make any more big investments; will the old gems (e.g. Fire) scale up to 56 cap, as they did in this expansion.
There's nothing wrong with scaling these gems as there is a limited supply already and they can't be removed like jewels can so once you use it, it's gone. Price will only go up until farming jewels is the preferred source of upgrading items. I just want confirmation on the fact that they will be scaling up!