In terms of Kamada staying next year, one problem might be that he is apparently on big wages.
I can sort of understand why that happened, as its not uncommon to go big on salary when signing a decent free transfer player (for which, see Lerma).
Thing is, even those who rate Kamada must surely accept that he hasn't justified being on £105k pw? Plus, how does it sit with all those players who are contributing every bit as much or more for half the wage?
If he wants to stay then he will surely have to take a huge pay cut, which I doubt he will want to do.
How accurate this thing is I couldn't say, but a few different sources say something similar:
Capology | Football Salaries & Finances
www.capology.com
Personally I think Kamada lacks the match-winning quality to play No10, and lacks the physicality to play centre mid, although he has improved in that position over time. Whilst he makes himself available for the ball, he also often seems to take a fraction too long to play a pass, undermining attacking moves as much as he helps them. He contributes little at set plays, and rarely scores in open play. His loss would not be irrelevant, but nor would it be too much of a problem. I am the first one to say that you can't just give kids a chance, and that the step up to the first team is huge, but if Glasner were forced to use Kaden Rodney instead of Kamada I don't think we would suffer too much for it.
Kamada had one of his better games in the cup final, and will always be fondly thought of for that. Given his modest contribution on the field and the savings made on wages, however, I am happy to wish him well and see him go.