Radiohead: They could drop their new album any day now - and we assume it'll be out before their run of European summer festival dates. Again, nothing announced in the UK, so are they a shoe-in for Glasto? They're veterans, and have been known to drop in for a surprise secret set. If they don't headline, we'd put money on them showing up at random on the Park Stage one sunny afternoon...
Adele: She's sold more records than pretty much everyone else on the planet combined in the last year, and has overcome her fear of playing live for a pretty epic tour in 2016. Now, she's also rumoured to have overcome her aversion of mud to appear at Glastonbury. It's the daddy of all festivals, the one she was born to headline.
Stone Roses: Ian Brown and co are returning to play some huge shows and festivals including T In The Park. There's word of a new record too - could they complete what's set to be a historic year with an appearance at Glastonbury? They're among the rumours, so watch this space.
Kate Bush: Her Before The Dawn residency at London's Hammersmith Apollo in 2014 marked her first live shows in over 30 years. Since then, she's gone quiet again - and there has also been Glasto rumours ever since. This would be utterly life-changing, and one of the best sets Glastonbury has and will ever see. We can but dream.
Blur: Since they returned with the epic comeback album The Magic Whip last year, they toured the world and showed us all why they still matter. Aside from British Summer Time, they were pretty quiet on the UK festival circuit. Could they do one final victory lap at Glasto?
The Libertines: They flew in at the last minute for an epic surprise set on the Pyramid Stage last year, and there have been whisperings of them making a return to top the bill. However, Carl Barat recently told Gigwise: "I think everyone will be sick of us by then. Over the last 18 months we've been everywhere. We'll probably give England a break from The Libertines, come up with some new stuff - there won't be the same presence as last year."
The Prodigy: With a feral live show like no other, they'd totally destroy Worthy Farm - and certainly add a little variety to the line-up .
Oasis: Dream on...
Biffy Clyro: The Scottish math-rock heroes are back with what's sure to be a totally bat-shit mental new album this year. They've headlined Reading & Leeds, could Glasto be next on their ascent to world domination?