Asked my Polaris and Bobcat dealers, none of them had heard any rumors of new attachments or motors. OTOH, up until a few weeks ago they didn't even have brochures except for 2013 attachment single sheets, so I don't expect them to be up on the latest news.
Bobcat dealer expressed skepticism on the idea that a power auger (ditch witch) would be feasible on the HDPTO, not enough hydraulic flow and not high enough of a lift.