Flashing Nandroid to different Hboot topic

Hi, so my HTC One m7 is about 18 months old and has the purple haze camera fault. I recently went into the shop to talk about my warranty options regarding this and they've said No problem, HTC will send a brand new HTC one m7 and mine gets sent off.

My current Hboot is 1.54.

So, once receiving the new device, I assume it'll have a different Hboot. So after I unlock and root, can I just restore a Nandroid from my old device or will I run into issues?

Thanks