Hopefully the timeline is just off due to Covid/supply chain. I'd very much appreciate these two lenses specifically. It will also something pretty much impossible to find in the mirrorless space (apart from the Fuji 200 F2 which is roughly 300/2.8 equiv but doesn't take a 2X TC)
Apparently, yes. Whether it's covid, supply chain or Canon seeing that there are better returns in doing non-Big Whites, are anybody and everybodys guess.
My 300 Mk II is getting very little use after I got the 200-400.
I would like a 200-600 like the Sony I find it would suite me personally I have the 600f4 mk2 but finding it to heaver nowadays in. my older age and only used in hides nowadays the 200-600 for wildlife would be great as I do like my canon gear