I doubt we'll sign a right-back if Pied recovers.
The question is whether we can shift any of the players making up the numbers. Whilst a lot of people would like to sell various assortments of Forsters, Clasies, JWPs, Jay Rods etc. it might be easier said than done.
The obvious priority area is centre back, where we need a signing regardless.
Second priority, for me anyway, would be addressing the balance of the midfield. Two many similar players and an over-reliance on Romeu. In an ideal world we would sign someone to cover/compliment Romeu and someone with a goal threat about them but we aren't realistically going to do both unless we can shift on one or two of the others.
Other than that, it will depend who leaves I think. Upfront / wide attack, I think it's one-out, one-in, seeing as Gabbiadini looks good.