Here are some of the features slated to go live in the next content patch:
Wands - The Shoot Wand ability is now a toggle. While active, it will continue attacking with the equipped wand until some other action is taken (movement, spellcasting, item use, etc...).
This gets asked frequently if someone can make a macro to do this... you couldn't, but now you won't have to!
Pets of other party members will now display in the party UI. You can see pet health and harmful effects on the pet. You can turn this functionality on and off in the Interface Options menu.
Specifics on the back-end of this were previously reported and are a few news posts down.
Your main action bar now displays the number of the bar that you are currently displaying.
Probably a function to get this number somewhere as well. No information on that as of yet.
The login interface files are now checked to make sure they haven't been tampered with or corrupted. This is to improve account security in public game rooms.
Again, this was mentioned by Cairenn - make sure you don't have a GlueXML folder in your Interface directory after the next patch - basically this allowed username/password storing (so you didn't have to retype it every time)
Added the function TargetNearestPartyMember() to the UI scripting system.
I assume this targets the nearest party member
Lots of other things as well... You can see the full patch message
here.