I believe Keano will stay this season and develop himself into the best and most sought after centre half in the Premiership. He and his agent will have worked out that staying with Burnley for this year will provide him with a huge financial windfall come Jan or next Summer.
A huge signing on bonus for one of the top clubs will easily recover and exceed any salary earnings in his final year. Not only that, he wants to play football for his England place security.
As for Boyd, a real dilemma. We really need someone with more pace and creativity this year and whilst there is no doubt of his effort and commitment, SD recognises that. If I was Boyd, I'd sign and trust in his own ability. If he thinks he's not up to the challenge, he will have many teams prepared to offer a two year deal, albeit, not in the big boys league.
If he leaves, he goes with my thanks and best wishes for being part of an outstanding group of players that brought great times back to the Turf.