It's hard to get an accurate reading on the Alves situation. He will be negotiating his contract with Barcelona this summer. Surely the club wants to keep him, and Alves, like every player, would likely want to stay with Barcelona.
But while Alves continues to insist he wants to remain with Barcelona, he is also acting like a neglected girlfriend and complaining that Barcelona isn't treating him well. Alves has voiced him opinion several times and the situation could get much worse before it gets better.
Barcelona thrives on team chemistry. They pay their players well, but the team is always more important than the individual. Most teams will preach that, but few clubs will stand by it. Barcelona will surely make Alves an offer. But if it isn't what Alves wants, Barcelona will ship him off before they offer him a premium.
Perhaps Alves will be satisfied with the offer. But considering the fact that there is already so much discussion about the negotiations that have yet to take place, it is likely that one side will leave the negotiations unhappy, and it likely won't be Barcelona.