Will free will be preserved in heaven? If so, how so?

Why will sin not exist in Heaven? Furthermore, will it not exist in the same way that it did not exist in the Garden, prior to the Fall?

Without Satan, and without the possibility of sin, would one's will still truly be free? And, if so, was Satan and the possibility of sin actually necessary in the Garden, in order to allow man a choice, and true free will?

I wanted to bump this so other people might respond.  My own views are colored by my belief that free will is the natural state, and I realize that not everyone shares this pov.  Any other opinions?

without freewill heaven sounds a lot like a borg cube. A lifeless drone which continue to exist long after the original entity dies.

Free will will be preserved in heaven, because free will is not predicated upon a dialectic of opposed choices, but upon the selection of possible (both real and only apparent) goods.

Adam sinned in the garden not because he was inclined to do evil (since he did not have such inclinations).  He sinned because he chose an apparent good (gaining knowledge of good and evil) over a real good (obedience to God).  His choice was not predicated upon his ability to freely choose to sin or to obey, it was predicated upon the choice of goods (one apparent, one real).  Since his mechanism of choice (the gnomic will) was as yet imperfect, and not yet fully formed in virtue, he chose in error and in ignorance.  If he had exercised faith and had obeyed God, he would not have sinned.  But even so, he chose what he thought (mistakenly) to be a good.  He did not knowingly choose evil.

In the same way, free will will be preserved in heaven because our choice will not be predicated upon opposed dialectical realities (sin/evil versus obedience/good), but, rather, upon an infinity of good things created by God.  We will freely, and rightly, choose among an infinite variety of goods and none of our choices will go awry because all of the goods we perceive will in fact be real.