Guess there is pros and cons to both systems, depends on the driving surface and other factors.
Short wheelbase platforms are somewhat more unstable than longer platforms, figure in four wheels doing there own thing at moderate speeds and things could get real hairy real fast.
Front independant, could probably add to stability in many situations, vehicles tend to steer better when the wheels are on the ground.
Probably get better articulation, on four wheel independant, but then again, look at the Uni Moog, arn´t many vehicles out articulate it (solid axle coil supension), with solid axles or any kind of axle.
Independant suspensions are generally lighter after the springs, unsprung wieght.
But then again, add many fragile looking parts, the more pieces the more to break.
Myself, I´m a traditionalist, there is a system that works, why mess with it. Maybe tune the old system some. New systems tend to have bugs.
Mayself, I´d like to see Mercedes/Chrysler, do a somewhat retro model (workhorse) without all the bells and whistles. Mercedes diesel 5 cylinder (older model) maybe Mercedes axles as an option (mechanical lockers/cable) or the Mercedes electronic traction control, which works really well, for the high tech, types. Mercedes doesn´t seem to do transmissions well, they seem to be big and clunky or fragile. New Process is a sub division of Chyrsler on and off, depending on the tax laws. If Mercedes and Chrysler had imput on what they do well, and built a Jeep, it could be pretty good. But they will probably design it in two different directions at once and end up with a high priced toy.