That is completely speculative - the only way to judge Kashmiri opinion would be to hold a plebiscite. In NWFP the people had elected a pro-India and pro-Congress party of KAGK, yet when it was time for a plebiscite the overwhelming majority of people voted for Pakistan, and not India. Domestic politics in a region cannot necessarily be used to extrapolate potential decisions on an international scale.
Overall I have no issue with your conditions, but the question is whether India will budge from its current stance and agree to the basic principle of settling the dispute through a plebiscite (district wise, region wise or a single one), provided certain conditions agreed to by India and Pakistan are met.