Hoy opens his campaign on Friday in the men's sprint and will ride in all three sprint events - individual sprint, team sprint and Keirin - for Sky Track Cycling.
In his absence, the 32-strong Great Britain and Northern Ireland squad for Paris includes Harry Aikines-Aryeetey, Dwain Chambers and Joel Fearon for the men's 60m sprint.
Daniel Ellis, Jason Niblett and Scott Sunderland's win in the men's team sprint came two days after lead sprinter Daniel Ellis was confined to his bed with a stomach virus.
Elsewhere, sprint king Usain Bolt produced an effortless run to coast into the men's 200m final and remain on course to claim a world sprint double to add to his Olympic sprint double from Beijing.
British 800m champion Michael Rimmer, 400m man Martin Rooney and Andy Baddeley over 1500m also have outside shots of gold, while sprint hurdlers Andy Turner and Will Sharman are two of the four men separated at the top of the European rankings by just five hundredths of a second.