Yeah.
Fancarpedia is based to brings life for all fan expansions.
it is possible to make shapes for any expansion! And also possible to play it as Vanilla Tiles* in JCloisterZone.
When it will be time, then can be added (mean create support for new features or new game login in JCZ) and play this fan expansion as it's based.
This example is Wells and Robber's son expansions. And count.
*Vanilla tile - Carcassonne tile which have multiple features. In JCZ will be playable only supported features on tiles (like road/field/gold tokens/flying machine/magic portal....) but new features like (Pyrenees, Ocean, Watermill, Barracuda) is not yes supported by JCZ so this will not be playable.