The New defender shares nothing with the old one apart from the names stuck to it.Considering the Land Rover Defender also switched to IFS after a 33 years of SFA I'm thinking jeep will eventually follow suit.
the old defender simply didn’t change for decades. Mostly because LR had no money.
the MB Geländewagen is a better example, having recently been redesigned and including IFS, with 95% of people who buy those never leaving pavement or the Starbucks drivethru. ...although they still make the old version for military customers.