According to the Daily Mail. Tarantino "has written an original, old-fashioned British farce, in the door-slamming, trouser-dropping, mistaken identity vein of Brian Rix or Ray Cooney." aimed at premiering on the West End in 2027 or even late 2026.
Normally I wouldn't take the Daily Mail at face value, but the story was also picked up by Variety, so that gives it a little more credibility.