Synchronization is still on the list. It is near the top.
But also synchronization is a feature that means different things to different people. In the why they expect it to work.
And I have not yet decided what kind of how advanced synchronization to add.
If MC will stay free forever.. I do not know. If it was changed I could buy some 3de party components instead of doing everything my self, app signing, professional icons, and more.
But it would also require a lot of administration that I'm to lazy to handle, So. There is no plans for any such change anytime soon.