I'd change very little.
We must keep (at all costs and if that means force them to stay) Lloris, Verts, Walker, Sandro, Eriksen, Ade (unless there is a genuine chance of an upgrade on him). I don't actually rate Walker that highly, but I don't see where we'd get someone better.
I see those as our core established players i.e those who have already made the premier league grade (could be being a bit easy on Eriksen but he looks the part) and I rate highly.
So that gives us (based on 442 but assuming we want some inter-changability);
Lloris
Walker x Verts x
x x Sandro Eriksen
Ade x
Of the rest, who do we think is capable of stepping up to the plate next year (I have my ideas, but interested to hear others).