Agree that they weren't too varied live from show to show (or as Stimpee points out, from tour to tour), but geeez, they were SO MUCH BETTER than 98% of the other electronic dance music out there, and much of their 90's touring career was legendary.
This isn't unexpected, but perhaps sooner than i thought they'd rejoin, esp. with their solo projects going on (i quite liked the first Long Range LP). And though their last few albums seem a tad cobbled together, see point above (e.g. SO MUCH BETTER THAN....)
If it's a one-off for their 20th anniversary, that's cool, and you can probably tell right now which songs will get played. But if there's a cjhance of new material (heck, even if thrown on the back of a reissue of Chime, gotta see that coming), i'm all