Like I've said, with a successful lead single, that should build the necessary hype. And if they are announcing the residency at the iHeart Radio Festival like rumored, there will definitely be a mention of an album. There always is. That should get the hype machine going. Where better to announce something of that magnitude? In front of tons of music artists who might possibly tweet about Britney and her announcement, not to mention, the actual people attending the festival and then the fans will also trend something on Twitter.
As for those choreography submissions, they suck and I could care less if they get chosen to choreograph for Britney. So bland.