Actually I just recently created this set and the villager set as add-ons for the 50 monsters set.
Since those monsters/characters are designed more for a frontal battlesystem which usually doesn't feature player sprites, I could imagine that at some point in the future a good enhancement for this series would be sideview frames for the sprites to build something like a Final Fantasy II / IV / Octopath battlesystem.
Recently I have been significantly enhancing the GUI series. Generally I am taking requests into account, but since the assetstore is a sparetime project next to fulltime work.