Having previously owned the Nikkor 135mm f2 DC AF-D lens the launch of the Nikkor Z 135mm f1.8 S Plena lens does interest me.
Looking at these test images, it would be silly to compare DC lens with the Plena lens. It would be like comparing a fax machine with email.
For me, the pricing of this lens makes it better first Z lens choice over the 85mm f1.2. £2699 instead of £2999. Still a lot of money but the option for a secondhand version for the 85mm is still not there.
One of the reasons why it was an easy choice to sell the 135mm I used to own was that it was too long. The distance between me and the subject was a problem in creating a connection with them. Being too close in their face or too far to be aloof is why I like using the Nikkor 105mm f/1.4E ED or the 85mm I have.
It does make sense to get this lens first as it complements my lens collection rather than competes with it.