It's going to be a little bit messy because honestly with all the rumors and fake info circulating I don't know what is sure and what is not.
A countdown can be seen on gimmebritney.com and it'll be up in late August.
People think the new single title will be revealed then."Shh... It's a Secret" is what is written on the website.
A fake photo circulated around the same time so people were getting excited.
A magazine cover is coming and Britney has been spotted being careful of what she looks like (hair, clothes, shoes etc) so it might be a sign that "it" is coming.
Hope it'll help!

omg omg omg is this actually happening soon?? that rea9y makes me think...september???

thnx blur!! omg omg i can see it finally happening! all these damm time waiting and i hope is finally gonna happen soon! just saw her latest candinds and she looks amazing!

has anybody else actually seen the numbers in the video ... cos i cant see them anywhere ...

they're there.
pause it and move the little circle through the bar, you'll see them

EDIT:
I made this cap

NOOOOOOOOOOOOO!!!!!!!!111

That had best stay a mere rumour.

Omgg pleasee let that be fake!

oh **** no. im sure it'll be hot but I dont want a rihanna duet.

OH LAWD. I heard that rumor before elsewhere but thought it was just someone playing around.....

Well, if it is true...then bring it. I just want new Britney.

ANNNNND - today my station played Gimme More AND 3 nearly back to back....they are warming up our ears for her.

I doubt it's real so you all can calm down.

I doubt it's real too, but I would love it to be true! It could be fierce!

This collaboration rumor is obviously fake!

no thanks. There voices would clash, and Britney is more of a solo act anyway.

It's not that i don't like Rihanna, but she has been featured in so many songs already, and The Queen can't work with such overused singer

I would personally LOVE a collab with Rihanna, she is being a bit overused though.

A Collabo with Queen rihanna would be amazing but not as the first single, queen spears can blow up the charts on her own

Their voices wouldn't compliment eachother at all.

And Rihanna works with too many people, it's getting really old.