lads this is suarez we are talking about, he will give the club all he has got, but i guarantee he will not leave on good terms, everyone will hate him, so dont be surprised if come the summer he bails, irrespective of the contract. the only thing to be joyful for for certain is he will cost more to extract. aside from that there's little to prove he will be here next year, especially if CL is not achieved.
perhaps the new contract has a set of release clauses based on performance and amount offered by other clubs?