Possibly more to add later (in this entry, or another future one) as this is rather extensive interview, but this album sounds like it could be all over the place, hopefully in a good way. She recently posted on Facebook describing it/her sound as "ProgPop" which is not new to others,. but good to see from Kimbra herself.
http://www.fasterlouder.com.au/features/37909/Kimbra-There-are-a-lot-of-parallels-between-quantum-physics-and-music
"to collaborate on the record includes pop iconoclasts (Daniel Johns, Dirty Projectors’ Dave Longstreth, Unknown Mortal Orchestra’s Ruban Neilson); abstract beat wizards (Flying Lotus, Thundercat); progressive rock heroes (Mars Volta’s Omar Rodriguez-Lopez and Deantoni Parkes, members of Dillinger Escape Plan and Queens of the Stone Age); seductive soul singers (Bilal, John Legend); and the undefinable and legendary composer Van Dyke Parks. And just because that’s not quite enough musical prowess to feature on one album, Prince’s New Power Generation keyboardist Morris Hayes and John Robinson"