You don't need it. All the ZigBee information is stored in Hubitat's database, with (unlike Z-Wave) nothing on the stick itself. That should be quite easy to move to a new hub, even with the tools currently available.
Good to know! I guess I never consider that since I've always re-used the same stick, no matter how many times I blew away my Home Assistant setup in testing (same stick as Hubitat) and was always just able to use a ZigBee database restore to save me from myself.
I'm really trying to not give too much away as I feel that would be a breach of the NDA I have signed
However; One thing that I will say.
When the new Hubs come up for sale (Don't ask me when because I don't know)
I see no reason to change mine. (except the new one's prettier)
Bear in Mind that Bruce has already said that the current spec (mem, cpu etc) is not in the least 'stretched' unless there is a loop or something consuming resources
I am not being argumentative I just think "backup" and it means the Hub's DB with device IDs, names, states, and another hundred columns of goodness, including apps and Rules. All for naught if the ZWave DB on the USB is empty.