There are some ups and downs. On the upside we'll have more lenses and more, also affordable options, while the downside is that we pay probably some 20-30% extra to Nikon just for putting their badge on a Tamron lens. I do seriously hope that we at least get the same quality control and same Nikon support in terms of Firmware and lens corrections and that these lenses are not treated or regarded in any way different than their in-house lenses regarding such aspects.Is it possible that instead of licensing the Z mount, Nikon is just going to use Tamron as a partner to offer an expanded lens range?
It seems like a good strategy to me.
Nikon has partnered with Tamron before (see https://cameragossip.github.io/nikon-lens-patents.html)

