Summary: Portuguese Language Stack Exchange will begin the nomination stage for a special election on June 28 to bring in one more moderator. Despite the lack of interaction on the interest check post, I checked with the current moderation team and we decided to go ahead with an election anyway.
For full details of the process, see the announcement on Meta Stack Exchange. The timeline:
On July 5, if there are two or more candidates, we'll run an election. If not, I'll extend the nomination period for a week. If, at the end of that extension period there are still less than two candidates, 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 July 13 (or July 20, if we need to extend the nomination period).
(Note for current moderators: there's no need to nominate yourself even though you'll likely get an email saying you should. The system assumes the first election is a graduation election, which would mean moderators would need to be re-elected. This isn't that sort of election.)
If you have any questions about the process, please stick them in an answer here.