http://simongogerly.com/full-discography/
Listed on that site is (in artist project producer format), "Underworld; new mixes of archive tracks for '2nd Season'; Rick Smith"
Doesn't appear that it's for an anniversary boxset or whatnot. That said, it's good to know that these remasters have happened and a hint at where to find them. That said, "2nd season" doesn't feed much of use from google. :\
edit: Interesting he's done everything released of theirs since 020202/phonestrap. Trial runs that went well maybe?
further edit: an old blog entry saved by
google cache reveals a little bit about their work history.