It depends on how ethergaunt is worded. Elves can get away with it because they are listed specifically and as bonus feats. Fighters, for example, can't chaos shuffle the MWP's because they don't actually get the feats.
Originally Posted by Elves
So if ethergaunt lists the MWP's under the bonus feats header or calls them out as specifically receiving all the MWP feats then they can chaos shuffle them. But if its done like the fighter (as a class feature) then they can't.Originally Posted by fighter