Also where do you rank goalkeepers ? This year has been hard to pick best one for me .

Keeper of the Season for me has to be Courtois but only just. Lloris obviously has also been brilliant and has a running battle with Courtois for clean sheets! De Gea however though has kept United in many games where with any other keeper except him United would have been dead and buried. They are the three top goalkeepers but also Heaton and Pickford deserve huge credit, as both of them have been on the loosing side in many of the games this season but have produced amazing saves at times.
Failed keeper of the season is obviously Claudio Bravo!

Croatian

Depends. if he wants to stay in second tier for a year potentially and not hinder his progress, then that could affect him. He could alternatively move but risk not being first choice. That all depends on him.