It will be a CR ship.
If you arent a member of the CR you will most likely have to ask the CR for a permission or something like that. But due to us being 'the evil' beings you will just get it granted if you ask.
IMG will probably be the only folks with a White cell on CR tech.
Which means any Zephyr's not in IMG or CR hands will most likely be in red cells, tech wise.
As such, they would require special roleplay requests.
Same goes for any Nyx's etc, though no one will actually have those in 4.86. All the current Nyx's etc are changing to the IMG versions. CR etc will buy their ships again.
If you are using a Zephyr now and are in the IMG, or use an IMG ID, you will most likely get permission from the CR come 4.86.
That does mean that pissing the CR off is a bad idea if you want a Zephyr in 4.86:P
it should be like the tech requests irreversible then. Cause i use it, the roles and rules change, similar to tech requests ( Accept me CR, lets kick that frenchies )