At the time of writing I am unaware of any Fortnite unvaulted weapons and items making a return for Season 2, as everything seems to be either new or rolled over from the previous season.

Fortnite’s v34.21 update introduces new weapons and ... Pump Shotgun, all amid a Mortal Kombat crossover, ensuring fresh combat strategies in Chapter 6 Season 2. Image via Epic Games Fortnite ...