Unfortunately no, when I used to do BREW dev, we had a few lines setup for many many handsets, everytime we needed to swap active lines between devices it meant calling up Verizon and giving them new IMEI.

Now I don't know exactly how this all works with LTE and the sim cards, since I no longer work on mobile apps I haven't really bothered keeping a close eye on it.

I don't think the carrier would recognize the phone if you changed its IMEI