The Org will find ways around this if an Appeal fails, but their guns will have been severely spiked, they certainly will not be able to take much overt action against those JW's who choose to have a normal relationship with family members who have left for whatever reason.
But the Org RELIES upon the awful Shunning technique to keep members in, so they will circumvent this in any way they can.
The heartening thing is that this Case has taken place in an E.U Country, all E.U Countries will take note of the eventual outcome, and even non-E.U Countries often follow closely, and emulate, decisions made by E.U Courts.