This might not interest many other people
The Voigtlander 40mm f2.
You can now preorder the new pancake lens at BHphoto, Fotoerhardt. DC.watch posted these images of the production ready Voigtlander Septon FE lens:
www.sonyalpharumors.com
There's a nice review of this in another place and they compare it to the TTA 40mm f2 and a few other things including the Voigtlander 40mm f1.2. The Voigtlander 40mm f2 looks better in the corners than the TTA but the Voigtlander 40mm f1.2 seems to beat the new f2. One obvious comparison to make to me is to the long time existing Voigtlander 35mm f1.4 Classic in Sony mount. I've had this lens quite a while and it is possibly the lens I've taken the most pictures with in my interchangeable lens camera days. Apart from corners which are never better than poor and funky bokeh at it's widest apertures with complex scenes it is IMO a pretty good lens and light years ahead of the Leica mount version when mounted on a Sony. This new 40mm f2 seems to be better than the 35mm f1.4 in the corners but this is when looking at a crop of picture taken on an A7rII which I think is 42mp and the 35mm f1.4 does go to f1.4.
A while ago I'd probably have bought this and their 28mm in Sony mount but I'm not using MF lenses much now and I have too much stuff already so I'll almost certainly just read and watch the reviews and lust after but not buy. It's a lovely looking little lens though

Smaller than the 35mm f1.4.