I'd really like one that is both left and right handed. Ideally, would be omni-handed. Realistically would likely require a light "change-over" to go from left to right and back... hopefully without any additional parts.
Could be pretty simple in my limited knowledge. If the reel has a "side plate" the reel mounts to with a bolt as an axle, and then the line guide was just an L-bracket on the front of it, you just need to flip them to the other side. The ratchet-lock mechanism is the issue.... haven't thought that through yet... but really haven't tried...
could actually make the ratchet "dual sided" on the plate (lever assembly on both sides)....