The first half of 2021 is not going to be an exciting time for Canon shooters. The company continues to work on getting over the supply chain and manufacturing issues, something that is apparently going to be resolved by late March.
A source with a stellar track record has told me that Canon will announce more lenses at once than ever before. The lenses will have different shipping dates, but Canon is going to make a “massive splash with a new camera and many many lenses”.
I have posted the known RF lens roadmap a couple of times, and you can check it out here. Keep in mind that the list may not be complete.
One lens not on the roadmap is a dedicated RF mount macro lens, I have been told numerous times that we'll see one this year, but I don't yet know the focal length or speed.
There will be a lot more information on this topic in the coming weeks, I can't say why, but things should start to come into focus.