46 megapixel canon Locked

A few months ago, there was a lot of discussion about the arrival of Canon's high megapixel answer to the Nikon 800d.  There were confident predictions that it would have 46 mp and that it would show up soon.  I haven't seen any discussion or even speculation since October.  Is this camera coming or not?  If I buy more Canon lenses in the meantime on the assumption that I will have a high megapixel camera to put them on within a year or so, will I regret buying these lenses and wish that instead I  had switched to Nikon's system?

Does Canon realize that there are Canon users who aren't buying Canon lenses these days because of uncertainty about Canon's intentions with respect to staying in the high megapixel race?