not sure about the others but lawler and digweed judging from recent sets ive heard arnet playing prog anymore.
Lawler has well and truly jumped on the minimal badwagon - check out any of his tracks on Viva or any sets of his. Digweed and Sasha have went on to playing Supermayer and Robert Babicz tracks. Sure its not full on minimal in the style of Hawtin and co but its nothing like typical prog either.
The only really big names that I know of that are still playing prog are Cattaneo, Warren & Anthony Pappa.
wont sasha's new release be on GU?? i rather enjoyed the freeland cd and layo & bushwacka, felix da housecat shudnt of been done but never mind!!