Do you plan to update the mod to the versions above, if so, when?

It will get updated to whatever versions possible but that means it requires GeckoLib to be updated to the same game version for Forge too.

GeckoLib isn't making a 1.17 Forge version so it will depend on whatever it updates to next for Forge. (likely 1.18 as many people are going to do minimal support for 1.17 in Forge)