I have been making donations for this and will continue to make donations towards this.
I LOVE MorphOS and don't really have any gripes with Ambient, but would love to have Magellan on there none the less.
New updates would certainly be nice for my classic systems.
AROS will become enjoyable to use (like Haiku), as Wanderer is REALLY holding it back hard core.
And presuming that OS 4 is pretty much the same (over the hood) as Work Bench 3.1, then I'd say they would most certainly benefit from this as well.
I have never used a file manager on any OS aside of Haiku, that I found so responsive, feature rich, light weight, and exceptional user friendly!