Several months ago, I did the other Draenor map comparrisons, they can be found here.
Now that Tanaan Jungle is near to release, an uncovered map has surfaced. Below we see the Draenor version…
… and here is the Burning Crusade version. We can see several things that persist in both versions: The Dark Portal of course but also the Throne of Kil’Jaeden, and Hellfire Citadel.
However the Temple of Sha’naar is a bit to the east of the present day Ruins of Sha’naar. Lion’s Watch is in the approximate area of the current Honor Hold. Everything else has changed as you can see.
It should prove interesting if Blizzard reveals the reason for some of the changes, fingers crossed they do!