I got the impression that 4e was very Earthdawn-ish from the various previews and teasers. The thing that really felt Earthdawn-ish to me was the 'everyone has magic powers' thing. They might be explained as having a 'martial power source', or a 'divine power source', or whatever, but still, it's magic.
Basically, the similarity to me is that both use the premise of a very high-magic setting, where even starting adventurers are treated as 'epic heroes of legend.'