not really, you build the whole opinion on this assumption. Its not God's Will, however God knew it and choose not to interfere for a time to see who submits his/her free will to Him. The one's who dont, including 'the devil' will try to get more in their camp but Devil is not doing it for God and cant claim he is doing God's Will
So, anything that Lucifer does must be within God's Will, and if that is so, then it comes from God.
So in all the lamenting that the Christians do about what Satan is doing, who is worshipping Satan, etc; they rarely stop to think that it is actually their God that is doing it. The story of Moses chronicles that God HIMSELF hardened Pharaoh's heart which in turn brought devastating consequences upon his land. Satan was never mentioned once in that story, it was all God, playing games with the people. So, one must ask themselves, is Lucifer truly evil, or is it all a way to test your loyalty to Jehovah (which meansthe unchanging, eternal, self-existent God, which means he is still the same God that tortured Egypt)?
the testing of loyalty by devil is incidental, yes God knew but its each person's free choice that is under test. God is letting evil happen on earth to not violate free choice, but anyone committing evil cant get away by claiming that it was God's Will as God let it happen. Thats a lame excuse to do wrong then pin it on God. Yes right! God would really feel ashamed and leave His Throne(metaphorical) to the 'wise guy' who bested Him by this arguement!!!