I don't think it's fair to say it's been a dry 2018/19 for Sanderson. We got Legion, MTG, Skyward. He's obviously happy doing what he's doing and I'd prefer him not to burn himself out with Cosmere books. I enjoy the time between books theorising and re-reading my favourite author, especially visiting this forum.
I do understand that we all need our Cosmere fix and it's hard coming in to a book series that isn't finished. I remember waiting for Oathbringer after finishing WoR and realising that we are only even beginning to see the Cosmere world and I'd be well into my later years to see this finished!