My personal assessment.
Lloris - If he wants to stay, keep him. Should he want to leave for a team playing in the CL, he's definitely worth it.
Vorm - A decent back-up.
Friedel - Will probably retire.
Walker - Still our first choice RB, has been marginally better than last year, but seems awfully injury-prone.
Rose - Has improved a lot, has become more effective attacking-wise, his defending is still questionable, though. Nevertheless, worthy of a starting place.
Kaboul - Has been out of the picture for most of the season. Sell/Release.
Vertonghen - Hasn't performed consistently for a couple of seasons. Should be allowed to leave for the right price.
Chiriches - Championship defender on his good day. Sell.
Dier - One for the future, but needs a solid companion.
Davies - Has struggled with fitness and form, but should be given one more season to prove himself.
Fazio - When we consider the fact he was supposed to be an improvement on Dawson, I wish this deal had never happened.
Yedlin - Probably only brought in for marketing purposes. Seems quick, but that's about it. I can't see him becoming a Premier League footballer.
Paulinho - Has been okay in his recent substitute appearances, but the manager doesn't seem to rate him. Had a crap last season, a crap World Cup and hasn't really picked himself up. I can see him moving back to Brazil.
Lamela - Can come up with a flash every once in a while, but after his two seasons I can't see him succeeding in the Premier League. Sell.
Townsend - Plays well enough for England, but too inconsistent on club level. Keep as a back-up or sell to a mid-table club.
Dembélé - Good in possession and strong. For some reason the manager doesn't seem to rate him. I would keep him, but I fear he will be sold.
Chadli - Scores quite a few, but tends to go missing a lot as well. Still, a good squad player.
Eriksen - Form is temporary, but class is permanent? Has looked very tired for some time now. One of the best players at the club, still.
Capoue - Has been out of the picture for most of the season. Sell/Release.
Mason - Has faded badly, but considering it's his first season in the Premier League, it's understandable. A good squad player.
Bentaleb - A bright talent, but has also faded. The inexperience of the Mason/Bentaleb partnership has been pretty evident for some time now. Obviously should be kept, but not overused that much.
Stambouli - Seems he was only brought in as a back-up. He will probably never be anything more to us. I wouldn't be upset if he was sold.
Soldado - At times horribly painful to watch. Sell.
Adebayor - Has been out of the picture for most of the season. Sell/Release.
Kane - No comment needed.
Archer - Can take Friedel's spot.
Lennon - I would like to see him at Spurs, but he'll probably leave for Everton.
Holtby - The manager doesn't seem to rate him, otherwise he'd be with us. I would like to see him at the Lane, but he'll probably move back to Bundesliga.
Carroll - I don't think he'll get a chance at Spurs. Sell.
Pritchard - Has been great for Brentford and merits a squad place for the next season.
Alli - I'm not sure if he's ready for Premier League yet, but I haven't really seen him play. Maybe another season in the lower leagues?