You can turn the mini-party window (the thing with your party members hp bars) off using the party menu.
Though that falls under:
-ALL boxes can be dragged to more comfortable locations for some players; or left as is for the veterans. Some can now be completely removed, examples; (Mini-Map, Item Drops Box, Stats Box, Quickslots)
They also have a Reset Window option in the menu for those who don't know where to reset it. o/
Hmm, you can also hide pet xp/sp bars now in options.
There's also a "Summon" box you can check off in options so I would assume that means you can auto-reject being IR'd or whatnot. (That wasn't there before, right? ._.)