* If the Job Queue gets support for delayed (and maybe also recurring) jobs, we
could use the existing JQ infrastructure, and wouldn't need any processes for
ourselves. I'm a bit unsure though how well we could control scaling in such a
setup.
We're planning to the jobqueue backend from mysql to redis with the release of 1.21wmf13, and it will include delayed job support. It would be great if wikidata utilizes this for change propagation once it becomes available in a couple weeks.