"Although I do believe, basically nothing will change in US foreign politics."
Dang, I sure hope not! Indeed, I would assume that the election of Obama, or of any Democrat, had damn well better bring about a major about-face in US foreign policy.
Under the Bush administration, the United States started a war with a first-strike invasion for the first time in its history, made torture an explicit policy for the first time, and alienated virtually every allied nation (with the single exception of Mr. Blair's UK government).
A serious and abrupt reversal would only be a return to normal civilized behavior, and is the very least that I would expect from a President Obama, and for that matter even from a President McCain.