I’ve been going on about this for years now, even specifically suggesting we’d see a dual-boot machine in 2021. 
The two devices do seem to be converging, especially now with the ability to simply run iPad apps natively inside new ARMacs and run unmodified, from day one. But that’s a selling point for Macs. Does Apple need any time soon to offer the reverse capability to iPads, or would doing so sink sales of the new Macs?