Sony Officially Bringing PlayStation 2 Games to PlayStation 4 Through Emulation

Sony’s pretty solidly winning the current console generation, but that doesn’t mean they don’t have a few tricks up their sleeves—including the return of the highest-selling video game console of all time, the PlayStation 2.
After speculation surrounding some PS2 games included with the new Star Wars Battlefront, explained in this video:
It seems like the PS4 already has the capability to run emulated—not ported—games from one of the most impressive software libraries ever. The company confirmed as much to Wired, with a representative telling them via email, “We are working on utilizing PS2 emulation technology to bring PS2 games forward to the current generation. We have nothing further to comment at this point in time.”
That vague confirmation leaves some questions open, most importantly whether or not they’re going to enable playing PS2 discs directly on the newer console or if you’ll need to buy games again digitally or bundled on PS4 discs. Either way, this technology is obviously pretty far in development if Battlefront is already making use of the capability. What PS2 titles are you excited to revisit (possibly looking better than ever in a higher resolution) once this becomes a reality?