Not sure where that idea came from. They've always been called different things. The Fusion 10 is a continuation from a speaker that was designed close to two years ago now. Just updated for the smaller waveguide that's now available. The 1096 is something for very specific applications where there is no room for the second woofer. It has 3db less sensitivity on its low end also.
The mid and SEOS10 section of the 1099 could be used if you eliminated a few of the high pass components, but it'll have a pretty weak low end. I'd use something else personally. And getting the components from Erich would probably be a pain for him to divy up.