It’s unlikely they would use a drone. However, that doesn’t mean the US government wouldn’t use a proxy to kill him or perform an assassination.
The state of Virginia, still a part of the US government, isn't trying to do anything with, to or about Snowden (just or example).
I do wish you anglophiles would give up on the Brit speak that equates specific politicians with the word 'government'. This is America. We don't do it that way.
He would be Breitbarted.