One feature that did not make it into Nehalem-EX due to time constraints but will be in Westmere-EX is Directory Assisted Snoopy (DAS) to improve local memory latency.
In case Snoopy gets lost hunting down the Red Barron.
Though really, we're getting some more good heads up, though I tend to wonder if one of the reasons some features aren't in yet are that they don't want to give AMD too much time in the lead so to speak. Both companies have good features down the line, with AMD coming out with a whole new architecture re-design. I don't think it'll be as fantastic as the K7, because Intel is not resting on their lounge chairs by the pool eating grapes like they were with the p4 and netburst.