Update: According to the Intro's creator, the only footage provided were the pre-filmed promos. If HBO is so worried about the budget, then why change the intro at all? File this under, "For all that is holy, Why?".
Update II: The new Intro has since been yanked and reposted with sped up images at the beginning, without comprising the synced slow down that starts with Sam. It seems better overall, but the 1st couple of images seem a little too fast, like someone accidentally hit the fast-forward button.
Updated New Intro: