NWN 1 & 2 , Icewind Dale series, Witcher 3 Expansion pass?
During the summer sale? NWN and IWD are very possible, but I doubt about the expansion pass.
Wasn't the expansion pass like 10% off on the first day or something along with TW3 + the bundle with the expansion pass? I doubt it'll return in any case, except maybe during the last day.
I agree about the other games though, very likely.