During the Animal era Ke$ha was huge so I'm not sure what point you're trying to get across.
That I doubt Luke is just blatantly teasing us when its painfully obvious that a new Katy single is coming within the next few months. Even if the album isn't until November, we'll at least get the Lead single in Late July/Early August.
It was never clear when Ke$ha was going to release, and RCA and Capitol are two entirely different animals.
Someone drag luke on twitter and ask for a snippet. Threaten him if you have to
Tell him that he has lost his touch in producing quality pop music and if that ain't true then have him post a snippet on one of the songs that he's working with Katy I'm sure he'll get cave in after getting butt hurt.