Personally, would love to see Sergio Aguero. Think he would be the ideal replacement for Tevez if he leaves. He has the pace, the finishing ability and a quality shot. Could do worse!
Sanchez is another one for me, has pace and good skills and would supply Dzeko nicely. Think Baines would be interesting, reckon he would make the left back position his own and puts a good shift in, but I still rate Kolarov on his day.
Gary Cahill is a maybe, if he moved to a bigger team I think he could be a great player. And maybe a marquee signing like Kaka? wouldn't hurt to try, were in a better position now than 2 years ago.
Either way, looks like another exciting summer and I look forward to seeing the team for next season!