Nokishita has posted known and unreleased Canon gear, for the moment the list is pretty short.
Unreleased Canon gear:
DS586191 (DS586192 / DS586193 / DS586194)
Wireless file transmitter
Wi-Fi (IEEE802.11a / b / g / n / ac) compatible
3450C005AA (RF 70-200mm f/2.8L IS USM)
3792C005AA (RF 85mm f/1.2L DS USM)
Some sites are stating that the DS586191 is the EOS-1D X Mark III, it is not. The EOS-1D X Mark III likely won’t have internal wifi capabilities, therefore wouldn’t need to get wifi certification. Secondly, Canon DSLR product codes begin with “DSC”, not “DS”.
We have some more information coming soon to address new gear and when we can expect to see the next major announcements from Canon.