Pictures of objects or suits present in the game files:
PS: An “Eiffel tower souvenir” was present in the game files of Hitman 1
Weapons
PS: the weapon appears gold in live game
Weapons from Sniper Assassin (Knight and Stone’s weapons)
Other items:
Breach Grenade - Acts like a audio device
Proximity Emetic Gas Device
Flash Cure Grenade Large Range
Suits
Ninja suit (thx to @RieperMan47)
Other suits present in the game files
Helicopter pilot in SF
Sources :
- [Spoilers] Future content leak discussion (on previous Hitman forum)
- Cut Ninja Unlockable Outfit ? (topic on Hitman 2 forum - @RieperMan47)
- https://www.reddit.com/r/HiTMAN/comments/a1etk5/is_it_still_possible_to_find_these_outfits_in_the/