Well, I thought about that, but I believe there will be a difference in firmware memory capacity, as Wendy stated they working on the NXDN upgrade, BUT it would only be available on the TRX1 & 2 due to memory capacity. I'm not sure however if that warrants a complete new FCC ID number or not. I DO know that when they released the 1088 and 1098 with the full keypads, they were able to piggyback on to the previous ID numbers for the 1080 and 1095 since it didn't radically alter (or alter at all for that matter) the RF side of things, it just changed the control board. (And to that end, the RS versions are also included in the existing FCC ID numbers)
As a caveat, I was hoping to find a complete new FCC ID number for these 2 new units, as that could possibly be an indicator of improved LSM performance (Or, at the very least, something different in the RF side of things)
I have been waiting for a response of some sort as well, but it could be that Wendy just doesn't have an answer at this point... Time will tell. (And I'll just keep checking the FCC website daily.. Lol) I AM curious however, if she could look at the back of a unit (since they have been received) and let us know the ID number.