I used to think free will had solely to do with our choice between good and evil, but guys, it’s so much more! Free will is about being co-creators with God instead of being mindless robots. It’s about using our God-given creativity, intelligence and unique minds to accomplish, create, and enhance our world, and–ultimately–further God’s purpose for the universe (whatever that may be).
This is why we don’t have to worry about whether or not there is free will in Heaven. Of course there is. What there won’t be is a slavery to sin. Think about it this way: What if I had a terrible, violent temper for years, and suddenly God healed me from it? Would I say that God took away my free will? Of course not! Would I in any way be made a robot? Noooooo. I would be happy and my life would be enhanced. And in the same way that’s how it will be in Heaven when we no longer are angry, or hateful, or sinful in any way. We’ll still have our free will, but hurtful, ugly sinful behavior won’t be a problem anymore.