It is highly likely the footage came from last gen consoles, either Xbox 360 or PS3 since the PC version already looks like the remastered one on consoles. The trailer above shows the original graphics versus the new ones with remarkable upgrades but it didn't state which platform the 'original' footage was taken on. It will not be a free upgrade for the game owners on PC even though the graphics update was the least noticeable on this platform. Sniper Elite V2 Remastered will launch simultaneously for PC, PlayStation 4, Xbox One and Nintendo Switch.