I must be assuming and jumping the gun thinking that Site Sculptor should be integrated with all the WebAssist extensions so that one can created a FULL COMPLETE website using Site Sculptor. 
You're definitely not jumping the gun. You'll be seeing a lot more integration in the next few months and we are definitely heading in that sort of direction. It's definitely a good time to consider the Extension Library (if you haven't already) so that you get access to these new extensions as soon as they are released.
-Neil


