@ Teaearlgreyhot, what makes you believe that one will be tempted, no temptation no sin. God will not be in the presence of sin, if one were to sin in heaven, where we are continually in God's presence, we would sin in His presence, that want happen. Everyone's needs will be met, we'll all be on equal terms so to speak. Most important, is the love we will have for God, our new found love will be greater than anyone could imagine. There will be no reason to even contemplate sin.
God loves those who believe and those who do not and the same goes for me, you have no choice in this matter. That puts the matter of total free will to rest.