It will be interesting to see what happens with Michu and Benteke, both have had great seasons and could command a higher wage then present, they would also cost a fair bit.
If they stay it could be a good precedent for players establishing themselves and not just using it as a spring board to get to the top clubs as quickly as possible. Jack Butland turning down Chelsea was a good move too.
at present I can't see anyone other than Ruddy having an offer made which is worth our time, and as keeper careers are longer he will probably value playing time more than the money at then moment.