
I think saying you're the one who handled Edda or the Lich or what-have-you might be stepping on some toes for some people (That's WoL stuff! Or something.)... but you could probably make the delves and stuff IC, or at least use the dungeons as set dressing for something else with a bit of imagination.
In fact, PotD might be really good for something like that since you can pretty easily go in just by yourself or a pre-made/undersized party - which is a tack you can take with doing "IC" dungeon runs for similar purposes. The only issue might be, like with doing IC dungeon runs, the dungeon timer. Work around that, and I'm sure you could do plenty of fun stuff for RP with PotD.
In fact, PotD might be really good for something like that since you can pretty easily go in just by yourself or a pre-made/undersized party - which is a tack you can take with doing "IC" dungeon runs for similar purposes. The only issue might be, like with doing IC dungeon runs, the dungeon timer. Work around that, and I'm sure you could do plenty of fun stuff for RP with PotD.