Lots of differences, the biggest difference is a longer boom and wire drive tail rather than belt drive, this is the same boom as the Conquest so will allow use of upto 62cm blades.
I think it also uses the Conquest gear radio and a Ali clutch bell, new canopy, boom supports.
I would think it would easily be upgradeable to the Conquest tube drive as the rest of the back end is basically off the Conquest.
They also stiffened the pitch arm on the pitch up system as the old type could flex a little.
Can't remember what else is different right now but there's a fair bit.