Apple would presumably be reintroducing an SD lot to court the prosumer/professional market with these new laptops just as they have with the revamped iMac Pro

Apple would presumably be reintroducing an SD lot to court the prosumer/professional market with these new laptops just as they have with the revamped iMac Pro and the Apple Pro. As such they would need to add a full SD slot for people who use professional cameras because that is the form factor that these cameras use -- not microSD. Think about it another way -- what kind of products use microSD cards? What market would Apple be targeting if they brought microSD slots to their laptops?