I said from day one that they fully, absolutely, 100% expected this new arrangement to fail spectacularly.
My speculation is that after a year or 2 of near-constant haranguing on TV, website, assemblies, and in print, they will institute some form of tithing.
Not strictly necessary (i.e. not a DF offense if you don't), and perhaps not exactly 10%, but if you want any "privileges", you have to provide evidence of a regular & significant contribution.
That's my guess, anyway.