Arthur P,
Posts like yours are one of the reasons I love this forum, well thought out and civil. I do have to disagree with the crossbow replacing the compound. The one big difference is the draw. As long as you can keep a crossbow ready to fire its just not like bow hunting (more like a pistol I've always thought). compounds and traditionals share the aspect that you have to draw in the presence of your target. Granted you can draw earlier and holder longer with a compound, but nothing like a xbow.
What you described may happen, but I think it will be a version of the compound that does it. say something with 0 draw weight, but shoots speedslike a70 #er. Don't ask me how but i'm sure somebody is dreaming one up.