Well, maybe not a total abdication, but Jimbo has relinquished a substantial portions of his powers. See his announcement and the context.
In an upcoming academic article I discuss why calling Wikipedia a monarchy/dictatorship, while not too off the mark in its very early stages, is no longer true. It's nice not to be contradicted by the current events :)
OpenGLAM at Wikimania 2014 - The is a syndicated post originally published by OpenGLAM. The original version can be found here. Wikimania 2014 logo. “Wikimania 2014 Shard logo v3 with ...
9 hours ago