I've been gradually working on World Completion for the past six weeks or so (93% as of today) and so I've been coming across various doors, gates and conspicuous piles of rock on zone boundaries which are clearly intended to be potential connections to new zones in future.

I'm interested to see what might be added in Isles of Janthir and the Deldrimor Front - I didn't play Guild Wars so it would be interesting to see what veterans think as well as GW lore newbies like me.

Edit: Thanks for all the responses. I'm sort of tempted to take a look around the original Guild Wars now to get a sneak peek of some of these amazing-sounding places (albeit 250 years in the past).