Maybe they will continue to produce the defender for commercial purposes, sort of like how the original hummer was discontinued for public sale but still sold to armed forces.
I'm a big fan of Land Rover overall, not the Evoque, but the RR, LR3, Disco etc I think are great. Definitely not what they were originally, but still awesome vehicles. That being said the Defender was probably their best vehicle. The bottom line is that its a business and they have to meet demand. I'm fairly confident the will produce something cool but probably not like the defender we're used to.
As a side note, I guess the value of our Defenders will increase after 2015.