Question about the collector packs (Smart Casual, Winter Sports)

To date there were four collector packs for Hitman 2 (Requiem, Collector’s Pack, Winter Sports, and Smart Casual). Are all of these included in the Access Passes so they can be included in Hitman 3?

Yes. The Requiem Pack is part of the Hitman 1 GOTY Access Pass and the other three are part of the Hitman 2 Expansion Access Pass.