I think someone posted rankings from the athletic a few days ago in another thread that claimed JT was worth around 8 million IIRC. Now IMO their numbers are flawed so I take them with a grain of salt but I don't think they're completely useless either.
He's tied for 83rd in the scoring race, good defensively, excellent on faceoffs, of course he's not worth 11 million but he's far from being the worthless bum some people seem to think he is either. As far as him staying in Toronto when his contract ends, I could see it happening and him giving us a discount. Don't expect to get him for minimum salary or anything but depending on how he's playing at the end of next season, it might be 4 million or it might be 6 million or whatever else, we'll see.
As of today, I think he's still good enough to be #2C on a contender, but we're a better team with the talent spread out more and him playing on the 3rd line. JMHO.