It looks like the Canon EOS R5 has appeared for certification for its 2.4ghz/5ghz Wifi capabilities. The 5ghz specification was part of our original rumoured specifications for the Canon EOS R5.
The Canon EOS R5 is likely the DS126839 that has appeared for certification.
Also registered is a new camera accessory, which is likely a Speedlite. We originally thought it would be announced ahead of CP+, but I guess it makes sense to announce it when we get the official Canon EOS R5 announcement.
The new Speedlite is likely the DS586224 that has appeared for certification.
Update: As others have noted, DS586224 could also be the WFT-9A