Maybe no license agreement or too difficult technically?
I, too, am a bit disappointed that the new units do not support DMR or NDXN, but maybe we should consider that perhaps Uniden was unable to get licensing permission from Motorola to decode it in a commercially available scanner. One of Motorola's major selling points for Mototrbo, I am sure, is that it is "scannerproof". I imagine that is something that Motorola is keen to protect. Perhaps another reason is that to make it feasible, the necessary technology would make it so expensive that nobody would want to buy the unit. Would you pay $1199 for a scanner just to hear Mototrbo? I'm not sure why Uniden did not add DMR or NDXN but I imagine that they considered it, and just couldn't include them in this series of scanners.