Summary: Tezos Stack Exchange will begin the nomination stage for a special election on February 25 to bring in three moderators.
For full details of the process, see the announcement on Meta Stack Exchange. The timeline:
During the nomination period, users may nominate themselves and answer any questions that might have been asked on meta.
On March 4, if there are four or more candidates, we'll run an election. If not, I'll simply appoint the candidates. (There's a small chance we'll need to remove a nomination, but I doubt that will come up.)
If there is an election, I'll announce the results on meta on March 12.
If you have any questions about the process, please stick them in an answer here.