I'm skeptical about G.U.Y, Gypsy + Tea for some reason. Yeah she mentioned it being on the album when she like first announced ARTPOP, but she hadn't said anything about it recently..... It may or may not be on the album in my opinion, but that's just me. :)
Now that she revealed 16 songs so far it means some of them are being taken out. Songs she posted on Twitter(logically tweeting lyrics cannot fully confirm the song is gonna make it to the tracklist)+ those she confirmed to be on the album too long ago through interviews, etc(she couldve changed her mind) are more likely to be outtakes.