I suspect he'll tell all soldiers with him to stay quiet about it.Lich: "Don't tell anyone that the Lich is back. The best way to trick the enemy is to trick the allies."
Also Lich: "Saint! You cannot defeat me, for I am Lich!"
Poor catgirls
On the other hand it might really settle that yes, he is enemy of humanity now.Guess the skeleton army didn't get the memo he needed a beastman alive.
Of course you won't die from the fall! The stop though..........You only die by falling from a tall building because you believe you will. No really! Try it!