pourtant plusieurs sites vont dans ce sens:

"It is rumored Canon will announce several new products for the upcoming Winter Olympics (7th-23rd Feb.) and CP+ (13th-16th Feb.), which is include the long awaited 7D Mark II." cameraegg.org
"A new rumor suggests that Canon may use the concomitance of the Winter Olympics in Sochi (2/7-2/23) and CP+ (2/13-2/16) to announce various new products, among which there will be the replacement for the EOS 7D" CanonWatch

Donc moi, ca me parait tout à fait possible.
Il est vraiment très attendu ce boitier. Et comme ca doit devenir le fer de lance en Aps-C ils n'ont pas intérêt à se rater