I bet within 5 years Eastern Europe, Hungary included, will be INVITING the Russians back in, but this time as allies against a Western Europe that is trying to flood them with Moslems. And not long after that, the quickly-declining native Western Europeans (French, Germans, Italians, etc.) will also want Russian help in yet another push-back against their ‘friends’ from the Middle East.
Things will be bloody, Europe has all but assured that much.
They'll reach out to President Trump; should they need help!