I very much doubt it.
More likely, he's had a good season, but topped out at "useful squad player you can depend on as plan B". Didn't do much wrong and this is probably our last chance to extract anything for him in a trade, as another contract would see him into free agency. There are also players pushing up - Marley, EVW, Hibberd, maybe they're confident in Wright after his latest surgery, maybe they want to run Wags or Jed as a small defender. Fishy's almost the definition of a player you can roll over to a developing replacement without losing much.
Scott did say on the radio this morning that it's time to get more ruthless with the list, that you're much more likely to hang on a year too long than to cut a player too soon.
Shame if true. He's done well and is a nice bloke.