Too much money in it for it not to happen...may take longer than generations before but I would never bet on a console staying modproof
theres too much money in it in sat piracy,but the 2 big u.s providers,and other providers around the world have not had their systems compromised since 2008(key sharing doesn't count),even though it would be much easier to dump than the current consoles.
also,im only talking about os level hack,not drive hacks. I know for a fact a drive hack will happen,unless the hackers are lazy,because all it takes is the emulation of the disc laser reading the pits off the disc. just replay the analog signals from the optical unit back to the system. this is unpatchable,and ive seen this type of emulation at a chaos computer club talk in berlin.