I doubt Clayton will become an American citizen. His wife is British born and became an Australian citizen for him, so I would highly doubt any change. He has VERY good results for the Aussies. I do think this will bring a good change in Ocala, God knows, it's needed. Hopefully he will bring a new edge to America. He's lived in the UK for years, and hopefully that will help him, as over there, horses are a way of life, not a hobby.
I admire him for wanting to keep his family together, and I presume, he'll be flying back to Britain a good bit.