In all seriousness, I expect colorful imagery similar to that of Rihanna's S&M video (but more Gaga-esque, of course). Musically, I don't know what to expect. I honestly think the name ARTPOP is more a reflection of the album's IMAGERY than it is of the album's music. Which is perfectly fine, too.
I want lighter imagery songs and sounds during the beggining of the era and album but then the singles, videos and songs get much darker towards the end of the album