What's the plan for downvote federation?

Right now, downvotes (reduces) don't federate to (and from?) Kbin instances. This lack of federation makes the downvote counter really inaccurate—a comment that looks like it's +10 might be -15 when you look at it from lemmy.world.

This leaves me with a few questions:

• Is downvote federation going to be implemented?
• If so, is it a priority or something that'll happen much further down the line?
• If not, will downvoting be removed?