That too.
It could be that he's there to announce his final version of the SE (from the Reliance 4k job we've been hearing about) and, to counter the "who %#*^ing cares" response that would follow from the comic con audience, Disney's also gonna announce a blu-ray set that includes the remastered originals.
I'm not holding my breath for this to actually happen, but it's one big, giant "could happen" in my mind.