As a Blackburn fan, I think he would stay. Samba on the other hand will be gone, likely to Arsenal or Spurs. It's a shame really because having them two at the back has shored up our defence big time, as, until Jones came back from injury, we leaked goals for fun.
Some Rovers fans are talking about 30m for the pair, which is too optimistic, but Jones would fetch a lot more than Samba I guess, just for being English.
As for regular football doing Jones good, he has been our first choice for the past 18 months, only not playing when he did his knee in. That won't change any time soon, future captain material.