Sort of a bad timing for the trailer considering they pulled all the new Pottermore spaces from the navigator. Only way to get in is if you saved them to your favorites (or if they are still in your recently visited list). You can also still get in the Great Hall if you go to a Common Room and use the door there.
Sony's PlayStation Home updated mission statement...
"Like it never happened"
- Stand for something better than mediocrity and don't disguise it as adequate, when clearly it is far from that to anyone willing to be objective and unbiased. -