On the other hand, looking at the glass half-full, Nikon will hopefully release more "pancake" primes - 85 f2.8 and 105 f2.8. A 105 f2.5 will carry significant appeal, especially it is a Classic build like the new 28 f2.8 SE.
A 20/3.5 with similar dimensions as the current compact Z primes would be a welcome addition. That would be a worthy update of the tiny AI 20/3.5 which remains one of my favorite lenses. Some compact telephotos would also be good, something like a 75mm or 80mm f/2 and a 135/3.5 would be nice.
Actually my ideal would be for a set of lenses with 1.4x ratio between lenses. The exact focal lengths aren't that important to me, we could have a set which builds on the current primes:
20/3.4, 28/2.8, 40/2, 56/2, 80/2, 110/2.8, 160/4
or
21/3.4, 30/2.4, 42/2, 60/2, 85/2.4, 120/2.8, 170/4
or
20/3.4, 25/2.8, 35/2, 50/2, 70/2, 100/2.4, 140/3.4
or
24/2.8, 32/2.4, 45/2, 65/2, 90/2.4, 130/3.4, 180/4
etc
The resulting lineup would avoid large gaps between lenses such as 50mm and 85mm, or focal lengths too close such as 20-24-28, or 85-105. Such a lineup would work equally well on FX and DX formats, the lenses simply scale up or down one step to give the same field of view depending on which format you are using. The DX format would need to be an additional DX only lens to cover the wide end, something like a 16/2.8 or 14/3.4. I just can't understand why manufacturers don't take a more systematic approach to lenses like this, especially now they have a chance to build a new set of mirrorless lenses from scratch. They just repeat the traditional lenses with different sizes and shapes and no consistency in filter sizes and other accessories. The closest anyone got to my ideal was Nikon in the 1970s, which is why I like my AI kit so much

Some of the resulting focal lengths may look a bit strange but that never bothered me, I will happily use 40mm, 45mm, 50mm or 55mm, or anything between as a standard lens, I just adjust my working distance and composition to compensate. I also would prefer intermediate lens speeds like f/2.4 and f/3.4 which are exactly half a stop either side of f/2.8. Aperture settings like f/2.5 and f/3.5 always seemed a bit strange to me as they are neither 1/3 or 1/2 stop values unless the numbers are badly rounded. Maybe manufacturers think the .5 values look nicer, but that hasn't stopped them from making f/6.3 lenses. Anyone want an f/6.5 lens?

And if they are going to give them classic styling like the 28/2.8 SE, please make the lower part a functional aperture ring!