I wish they'd at least release the controller. I know they probably want to do it all at once but that shouldn't be delayed with the rest of it if that's all I want.
It used to be all powers of 2, but kinda starting around DDR5 they started appearing in a sort of "sub power of 2", so it'll be two different powers of 2 added together - typically one step away from each other. So you'll get like 16+8 (24) or 32+16 (48) or 64+32 (96)
I wish they'd at least release the controller. I know they probably want to do it all at once but that shouldn't be delayed with the rest of it if that's all I want.