I think this is true on an individual basis, minus the god aspect, but the collective mind of the human species is perpetual and ethereal, and so it does not apply. Also, this dynamic does not need a God to exist; it is natural within the bounds of being alive. You are implying a manipulation outside of ourselves that make us what we are, we are because we simply are, and need no outside influence to be that, again, free will. If anythig that God did to make us what we are, it was to give us the free will to become it, and we are not done yet, because we are forever becoming.
Whether one believes God created us or that we evolved, what I said is true for all (that our creativity is limited by various factors) -not just individuals. True. It is also true that our free will means nothing without the environment which we can manipulate -which is ALSO a manipulation outside ourselves that makes us what we are -whether by design or random circumstance.
If the collective humand mind ceases to exist -should we become extinct, let's say -it would no longer be perpetuated. It also had a beginning -whether slow or sudden.
Assuming we simply evolved...
should the human species avoid becoming extinct forever -which is extremely unlikely -the collective human mind (which tends to forget and/or doubt history) might be perpetuated, but individual minds are lost forever -until such time as we might understand how to keep this from happening -which would also require making the body perpetual, having a perpetual supply of bodies into which to download, or devising some method of self-storage or interface with mechanical bodies -(which doesn't sound fun to me). Regardless, those lost before this time would still be lost forever.
If God does exist, no one is lost.
If God does not exist, we can make mistakes that cannot be undone.
If God does exist, all things can be made new. If he does not exist, we are at the mercy of cosmic/natural events (at least for now, some might think -if we aren't taken out before we gain power over the universe). If he does, he has the power -should he also have the will -to manipulate cosmic/natural events -and eventually make us able to do the same. If he exists, this does mean he either causes natural/cosmic events -or allows them -including major disasters -but as his focus is not on this short life, and he has the ability to resurrect any, they are not truly as disasterous as we may think them to be.
There are many things which are impossible to man -which would not be impossible if a being exists which is not subject to human limitations.
Humanity should never give up trying to solve its problems -should never stop learning or trying. However, we may learn that we are incapable of the evolution of which you speak. If we simply evolved, we may find that nature -which has no will of its own -may supercede our own will to survive in any number of ways. We may also find that the will of one man may cause the destruction of many -perhaps all -other wills -even his own. This is a real possibility today. We may also find that we did not simply evolve -and that God was at the beginning -and is waiting at the end -to keep our inevitable end from happening.
All of these IFs, however, would fall away if we truly knew what happened before we existed. If God does not exist, we are essentially on our own. We are at the mercy of each others' "free will" -which doesn't always include mercy at all.
If God does exist, HIS free will -let's not forget to consider his free will -will would essentially count for more than our free will -just as the CEO of a company has more sway than someone in the mail room -or as a parent's free will must supercede that of a child -until it need not.
Whether any of this needs a God to exist or not -it either DID come to exist by the free will of God -or it did not. If it did come to exist by his free will, he may deem it necessary to use that free will to supercede ours -or take it away altogether if we refused to not destroy.
We humans take away peoples' free will daily by war, incarceration, execution, abuse, authority, and simple decisions. We cannot all have what we want when we want it -even here on earth -on a good day -the bigger picture must be considered -and we must be denied. (This relates to the commandment about covetousness, also).
I understand that some do not believe God exists -or simply don't know if he exists or not -but he either does or does not. I know he does -but understand you may think that to be impossible. For argument's sake, however... If he does exist, you will eventually know he exists. If he does not, I will eventually see that as true.
None of us can not think as we now think. All of us will think differently. Some of what we believe will remain -rightfully so -and some will not.