The “Third Rome” idea doesn’t seem to be his area, but he is pro-white and anti-Islamic — hence not a Eurasianist, while he is (of course) anti-American.
He is very clear that Russia must be ethnically Russian, white, and Orthodox to survive, and that civilization is European and has its roots in Greece and Rome.
He is a close colleague of Natalia Narochnitskaia.
I am inclined to say he is a neo-Panslavist.