Qsys was mentioned in an Altera training session I attended recently. I did basically ask the question, "Is SOPC builder going away?" The presenter indicated that yes, it will most likely be going away although they will probably both coexist for quite a while.
I was expecting something more different from SOPC than the press release (
http://www.altera.com/corporate/news_room/releases/2010/products/nr-edward.html?f=hp&k=wn1) seems to imply. It sounds like they are adding a lot of new features without changing too much what is already there.
If it's backwards compatible and has a similar interface, I wonder why they are changing the name? Why not just call it SOPC II or, SOPC+ or something similar?
I look forward to finding out what is really meant by, "Qsys will be able to offer memory-mapped and datapath interconnects that achieve nearly double the performance of Altera's SOPC Builder tool".
I hope it doesn't translate into "uses more logic to gain performance whether you need it or not".