One Guild Wars 2 fan has a really cool site up that compares side-by-side the differences in the world of Guild Wars 1 to Guild Wars 2 called Project Tyria. For instance most of Guild Wars 2 charr country is built directly upon key locations in Guild Wars Prophecies pre- and post-Searing. There is the Barradin Estate:
I admit that I miss a lot of detail through the quick beta weekend playthroughs, and I usually regret not stopping to smell the roses when there is a lore discussion or someone talks about finding a quiet picnic spot with a Yogi-bear vignette. I can’t wait to see how Project Tyria grows after launch. I bet there are going to be a plethora of amazing side-by-sides.