Credit: Taylor Hill/WireImage

Coldplay announced A Head Full of Dreams Friday, the seventh and perhaps final album for a band that has ruled the airwaves for more than a decade with smash hits like “Clocks” and “Viva la Vida.” An anticipated collaboration with Beyoncé and the project’s air of finality suggest that, like most things Coldplay, A Head Full of Dreams will be grandiose. Here’s what we know about the album — slated for a Dec. 4 release — so far.

It could be the group’s last album.

Frontman Chris Martin has hinted at this possibility since late last year. “I have to think of it as the final thing we’re doing otherwise we wouldn’t put everything into it, Martin told BBC Radio 1 in December 2014. “It’s our seventh thing and the way we look at it is like the last Harry Potter book or something. Not to say there might not be another thing one day but this is the completion of something.” But the press release announcing Dreams made no mention of the album being Coldplay’s last, or of what its members might do afterward musically. No word yet on what a Newt Scamander-style offshoot from the world’s biggest band would look like.

They’ll tour the album.

Coldplay didn’t tour behind their most recent album, 2014’s Ghost Stories, instead heading straight back to the studio to record what would become Dreams. “Just after we did that little bit of promo for Ghost Stories the last album, we went right back in [the studio] and didn’t emerge until about a month ago,” Martin told SiriusXM in an interview recorded earlier this week. “We toured so much a couple of years before, that I think everyone could see that we were just having a great time in the studio and we had such a clear idea of where we were trying to get to.”

But in the same BBC Radio 1 interview from last December, Martin declared that the band would hit the road in support of its seventh album — a detail confirmed in a press release Friday. The shows could also be their best yet. Says Martin: “I think this tour will finally have a set list where we feel good about it from start to finish.”

Dreams will feature some huge guests.

Coldplay has teamed with big names before — Avicii on its 2014 single “A Sky Full of Stars,” Jay Z on the remix of 2008’s “Lost” — but Dreams will be its most star-studded collection of songs yet. On SiriusXM, Martin described having “the freedom to work with anyone that we really loved, regardless of what genre they come from.” That means Tove Lo, Oasis’ Noel Gallagher, and Beyoncé — who shared the bill with Coldplay for September’s Global Citizens Festival, where the band played “Amazing Day,” a new cut off Dreams.

The album could be a TIDAL exclusive.

Coldplay didn’t put Ghost Stories on Spotify until four months after its release, and the streaming wars have only escalated since then. The band participated in the launch of Jay Z’s music service TIDAL back in March still appears to have strong ties to the company: It’ll play a concert sponsored by TIDAL and streamed on on Nov. 13 at Los Angeles’ Belasco Theater.

If Dreams really is Coldplay’s final album, they could have a future in film.

The band may not have toured after Ghost Stories, but it did keep busy. Besides recording Dreams, Coldplay contributed original song “Miracles” to the 2014 drama Unbroken and created a bizarre, 12-minute joke Game of Thrones musical that included cast members from the show and absurd lyrics like “Call me Daenerys Targaryen when you want to reach me, and if you feel the love then you can call me Khalessi.”