Hello,
I went to start the game on New Game+ and I accidentally overrode the save data I had which had essentially everything unlocked (which is my bad). Two things: 1) New Game plus is supposed to keep your sniffing gallery and mine got wiped, 2)I don't even have the option to start the game on New Game+ anymore, I essentially have to start from square 1 :_(
(I play on Steam).
If there is anything that could be done about this loss of save data that would be cool but I'm guessing its lost forever.