What does moving to 5nm mean here? Starting to build stuff with 5 nm or releasing 5nm CPUs AND GPUs? Point is we don't know... and waiting for next gen is alway

What does moving to 5nm mean here? Starting to build stuff with 5 nm or releasing 5nm CPUs AND GPUs? Point is we don't know... and waiting for next gen is always an option -- what about next next gen?