looks that way, right now. Tevez could still be sold in Italy (Inter,Juve) or Spain (Real M), though.
If City get Aguero and cannot quickly find new suitors for Tevez, the Apache may become available at a relatively low fee towards the end of the summer.
Most probably, however, he will stay at City till January and only then transfer to Corinthians, who by then would have received a fresh financial injection from a TV deal and would have the money to pay City up-front for Tevez, or at least part of the fee. Reportedly, the deal with Corinthians collapsed now because they didn't have the money now and would have had to take a loan for the first payment of 10 mil to City