1. Of course Swine will debut in early September, she's performing it at the iTunes fest thing... presumably along with a few other new songs.
2. Literally every fanbase tries to boost music video plays by repeating it a ton of times, so don't make it look like only her fans are the only ones.
The song seems to be stabilizing at #4 on iTunes so unless it completely leaves the Top 10 by , let's say, the VMAs, a rush released second single won't happen.