Yes, Defenders will get a new engine in 2006.
It's based on a Ford 2,2 Tdci (Common Rail Diesel). I think it will have 2.7 liters, not 2.2.
about 150 horses and 400 nm torque. This new engine is necessary because of emission reasons...
LR also announced, that the current Defender will be built until 2010.
From 2010 on there will be a new Defender on the T5 platform (Discovery3).