people have been pointing out some earlier examples of maximalist dance - in the original baggier (maxi-er) version of the piece I had a reference to "psy-trance's Mandelbrot-mandala curlicues"
but in terms of 90s examples I clean forgot about Sven Vath
not just the critically acclaimed Accident In Paradise LP
but the critically not-acclaimed (un-acclaimed? anti-acclaimed??) The Harlequin, the Robot, and the Ballet Dancer which was bloody awful by all accounts
Jam & Spoon's big album whose album i title forget also veered prog-wards
there was also a house/trance hybrid in the mid-90s called "epic house" which if i recall meant BT
then while jungle and drum'n'bass generally was minimalist and tracky or anthemic, and even when bombastic it was bare-bones bombast (No U Turn), you did have quite a few exceptions
Hyper On Experience had a fussy, busy-busy orchestrated sound that was thrilling on their classic run of singles
obviously Goldie with Timeless and then, jeepers, the prog'n'bass orchestral epic "Mother" on Saturnz Return
this is just the radio edit i guess! the full length is 40 minutes or so
christ on a bike i've never seen that video!
IDM by the late 90s had maximalist tendencies, through its misunderstanding of drum'n'bass actually i.e. drill'n'bass. Squarepusher had some Jaco Pastorius style bass noodle in there
also Max Tundra was pursuing a sound that was pretty max at the turn of the millenium, albeit on the very outer edges of electronica in the dance/post-dance sense
when dance producers decide to do an album, they do quite often go for an ALBUM in the big sweeping overblown/prove my versatility sense and it does tend to head towards that proggy maximal zone
you could probably collate a list of these vanity projects, ranked according to utter uselessness, with the effort by Paul Oakenfold seeing off most if not all comers