I have to disagree, yes Reina, Baston and Drinkwater will all go (I'll drive them if they want!) I don't think any of those you listed will go other than Jack, none are in a position to force a move with expiring contracts or on big big money. Some may want to go but it will be a very strange transfer window this time around. As for Taylor, Elmohamady, Lansbury and Jota could they do a job in the Championship? Probably IMO. Henri will not force a move with the wage he is currently on he'll never earn that sort of money again in his career. If we go down I think the squad will look very similar to what it does now maybe 2 or 3 non first team out with the same in.
If we stay up that's the only time I could see wholesale changes. I think player power has changed with recent events, other than top top players they most won't be forcing issues for the foreseeable.