As far as Denzel's creative output, this is not something I feel like I need.
But as far as Lears go, I think he'd probably end up giving the best rendition of Lear I've personally ever seen. It's infuriating how much this role invites hammy overacting, even from the greats (I wish there was some kind of red tape regulation whereby any actor playing King Lear was banned from screaming a single line of text). But I think Denzel would be one of the actors to do right by the role.
Baz's scoops are usually surrounding UK-based projects, no? I wonder if Denzel plans to do it in London.