Waiting for the lost skin to return to the Fortnite Shop, sometimes, is a test work. Even if you are counting for mutual cooperation – some return regularly, while others disappear in the vault for hundreds or thousands of days, often there is no indication that (or even) Unless) They will return.
For example, take the Borderlands Psycho Skin. The first was introduced in August 2019 – just before the launch of the Borderlands 3 – it returned a handful of it before 31 May 2020 ended. Now, almost five years later, it has once again returned to the store for shopping.