Sure there is market demand for that.
I would buy a few copies _given the right price_.
I've been trying to work with 3.5 on the Access, but am thinking of dropping that and going for 3.9 instead. If I get my Apollo 1240 up and running again that means I need another 3.9 license, and then I have a spare 1200 which I'm thinking of getting an 060 for, and that would mean another 3.9.
I also have Amithlon that I might start using more.
All in all, if it wasn't too expensive I would really like an update. At least 2, maybe up to 4 copies :-)