From Flavorwire, referencing this interview with indieWIRE:

[...] Kaufman had noted how frequently his name becomes an adjective — “Kaufman-esque” — because so many lesser films seem to be inspired by his sensibilities. “Why do they get to make Charlie Kaufman movies and I don’t? I think about that all the time,” he said.

[...] It’s telling, then, that the one Kaufman project that we might see now is not even a Kaufman project at all, but rather someone else using Kaufman’s film as a vessel through which to get people interested through familiarity/nostalgia — and it all oddly speaks to the validities of the concerns about the industry, and artistry in general. It’s at once completely frustrating… yet speaks to the artistic value and weight and cyclical telepathy of his work. If you wanted proof of how prescient Charlie Kaufman’s films are, the potential of a TV-fied version of Eternal Sunshine of the Spotless Mind being made — while the past decade of his new material goes largely ignored — would certainly fulfill concerns at the heart of so much of his output. (Source)