A two-month trial of the Pending Changes feature on the English Wikipedia is scheduled to begin on June 14. This will mean that for a small subset of problematic pages (i.e., biographies) edits by unregistered or newly-registered users will first have to be reviewed by an experienced editor to be seen by the "public" (i.e., those not logged in to Wikipedia).
I fully expect this will prompt much attention on whether Wikipedia is now more closed, open, or has even "failed."