LOTS of controversy if it's Foos but as once said, controversy creates cash... my personal list would be BMTH followed very closely by Muse (so I'd be damn happy with either) Foos last.
I’d say Foos are out given that R&L are usually later to announce things than anyone else. We’d have heard of Foos playing somewhere on the continent by now.
I am convinced that Travis, Eminem and Chappell will be there but there must be a rock headliner somewhere. If not Muse then BMTH, or maybe Foos didn't collapse at all and they're still on
He did Glastonbury and Hard Rock Calling in the same year. So same venue, but a different festival/promoter.
Don't think Glastonbury makes him any more or less likely for BST, as there's no direct link between the two. The only thing it would mean is that BST wouldn't have exclusivity on him, if that was a deal breaker for them (Glastonbury notably don't insist on that).