I would imagine that the Fascinate will be supported with CyanogenMod 9 (which is AOSP Ice Cream Sandwich) considering that CyanogenMod 7 officially supports the fascinate. I could be wrong, but until ICS source is released, we probably won't know for sure.
Well its here! Asop ics is available for the fascinate! Its from JT1134 on rootzwiki! I posted some links up in the dev section. Its amazingly functional almost everything works! Its my daily driver.