How can I get back to Pandaria?
The Pandaren representatives are present in both faction capital cities, Orgrimmar and Stormwind, and are shown on the map for each city with the marker.
It is worth noting that as the faction cities on the island of Pandaria have a variety of portals leading to pretty much every major city in game (ie: Faction capital, Race capitals, Dalaran, Shattrah) that many people will probably be setting their hearthstones to an inn located on Pandaria rather than all congregating in the faction capitals.
To add onto the Faction capital portal note, you have to complete so many quests before the portal will actually appear. For example I had to go so far into the quest line in The Jade Forest until a portal to Stormwind was available in the first remote town.
Not sure on this - I did no quests in The Jade Forest, I did dungeons from 85-87 and then went to Kun Lai... It could be level related perhaps?
Phillip I am standing in front of the 2nd AH in the valley of honor right across from the Pandarian rep and I dont see the portal could you be a little more specific..thanks