What makes you think Jim Croce is coming? I was under the impression that the ABC Quad tapes were no longer around.
As for some of the other artists mentioned, I have always said since the announcement of "The Collection" that the BOC titles could be very possible suggestions because of their non-release on SACD thus far. As for the Winters, I would certainly love for AF to reissue "Jasmine Nightdreams" as an SACD, seeing as how it's likely to sound so much better than the current DTS-CD, and perhaps "Shock Treatment" and the Rick Derringer LP could also be good contenders, seeing as how they have also never been released on SACD before.
Then from Johnny, there's "John Dawson Winter III", "Saints & Sinners", and "Still Alive and Well", all of which have also never been released on SACD before, so just right there, we have about 8 potential rock titles for AF to explore, and let's hope they do!