So no William Orbit for the final tracklisting 

I think all the songs made by the "writing camp" a year ago probably were dropped a minute after Dr. Luke & Max Martin became executive producers. That's why Britney is still recording the album.
I wouldn't be surprised if the final tracklisting is 10 songs by Dr. Luke / Max Martin, 1 song by Will.i.am & 1 song by B&A. The rest will be left out as bonus tracks 

 And I will be mad if the Bonus Tracks end being better than some songs of the final album, like with the Circus era 
