Lest we forget that the original iMac was announced at WWDC. The types of products usually announced at this or that Apple event do not mean we won't get a surprise.
Wasn't it Macworld Expo New York, July 8, 1998?
Not WWDC.
Or is my memory at fault?
EDIT: Nope, you were right. WWDC 1998.
Old age, eh?