When are next moderator elections?
How many moderator positions will be available?
When does the current moderators' term of office conclude?
When are next moderator elections?
How many moderator positions will be available?
We don't know, elections are on a as-needed basis.
When does the current moderators' term of office conclude?
There isn't one. We can step down or be removed by SE, but otherwise it's a life term.
As explained on Meta Stack Overflow, moderators are not limited to terms. The next moderator election will be whenever the community and the SE team decide that the moderation workload on the site exceeds what the current moderators can do, and the number of positions available will be determined by the need. It's usually 1 or 2.