u/VDV-TECH

Well I have few points I thought of

First when I went to check out the game,it was priced in full price,no discount, A game that was going in 90 percent discount,is not discounted during sale,even though this might not prove anything,it might be one of the reason

Second ,the game's anniversary is coming up ahead,even though it was released to PC later, 25th may is their anniversary

3rd some of us will agree that the right side clue is showing some kind of building,(this is not a perfect point as other games also have buildings in their cover)

Well we might see other clues they drop,and who knows ,maybe my guess will be wrong,but let's wait n check