I'm hoping to put out an interim release within a few weeks, primarily to add a new Settings section to the title menu. It will have a key mapping section, a master volume slider, and toggle checkboxes for fullscreen and high-res (parallax) backgrounds. These are things that have been asked for in the past and are pretty standard in games now. It will also address the issues some folks have with zoom in/out buttons not working.
Any other settings that may be useful? At this point I won't be adding separate volume sliders for voice or battle noises, not even sure how I would even partition those out.
I'll let you know when it's close as I'll definitely want folks to beta test it.