MysterD: I would expect stuff like Gears of War 2,3,Judgment and Fable 2 could come to PC one day more so than PS1/2/3/PSP classics, as Xbox is still based off PC style architecture. That should making porting a bit easier to PC.
StingingVelvet: I think it would take a miracle for MS or Sony to port random old games like Gears of War 2 specifically, but my hope is they do a Gears of War Collection for Xbox like they did with Halo and then port THAT. If that makes sense. Same for Killzone, Metal Gear and a host of others. I think when making a "new release" a PC port is more likely.
I would love - if like the Halo MCC was done - to see a Gears of War Collection to be for Xbox and PC, loaded w/ Remasters of Gears 1,2,3,Judgment.
We have Gears 4 and 5 here on PC already - so, we don't really need new ports of those. Plus, those games still look and run great here anyways.
I'd also love to see a full-blown Fable Collection for Xbox and PC - package altogether, Halo: MCC style - complete editions/remasters of Fable: Anniversary; Fable 2 with all its DLC's; and Fable 3 with all its DLC's. I bet those would sell like crazy.
About seeing a MGS HD Collection (with all MGS's before MGSV, since MGS5 is here already), Killzone Collection, God of War Classics Collection (before the GoW PS4 Reboot), The Last of Us Collection, Uncharted: Nathan Drake Collection & Uncharted: The Lost Legacy - would love to see those hit PC too!
While I'm at it - Rockstar, get on with that Red Dead Redemption 1 Remaster and get that to PC!