You’d think an introduction of CS at Gatwick will likely take place at the same time as bigger re-configuration of those aircraft. I think BA get 28 Club suites between door 1 and 2, and 32 old club world seats. In the post Covid world of “premium leisure” a lot of these flights end up sold out in club already, especially on the overnight eastbound services, so in my opinion, they may choose to include a bigger club cabin.