Got it. No idea.
I would read it this way.
1. The Truck and the Launcher are separate
this continues a trend noted with the Boxer (which loads modules on to a common drive train) and NASAMs, Coastal Defence and Skynex



2. That suggests
A. That the truck employed is immaterial
B. That the truck and the "pallet" can be shipped independently
C. That the weapons can be launched/fired off the back of the truck
D. That the weapons can be dismounted and emplaced
E. That the weapons can be mounted on board a ship.
3. That further suggest that the key element in the design is the T&E gear (Traverse and Elevation) and that a common palletized T&E solution could load just about any missile assuming that the missile pod was compatible.
Any PLS truck could transport the T&E Pallet.
Any T&E pallet could load any pod with any missiles from the MLRS Family, potentially the NSM/JSM missiles, new 122 mm rockets with M1156 precision guidance kits, new cruise missiles, loitering munitions, Brimstone and NASAMs pods for Sidewinder, AIM-120 ER and ESSMs.
And that the systems could be tri-service systems.