The extras on the second disc, there are no extras on the first disc or else it wouldn't be a Superbit, are the same as the previous release. The only thing that isn't on the new release that was on the old one is the commentary.
Minor alterations: in addition to the absent commentaries, the SB Hollow Man offers some different trailers, changes the "Talent Files" to "Filmographies" and omits those for two actors, and also loses the production notes in the DVD's booklet. (Nit-picky? Yes, but that's my job!)