I think the problem with making a 35f1.4 in LTM mount is bigger than we think. Even by todays standard a 35f1.4 is a rather complex design and the new CV lens is quite compact with only a 43mm front. that means it has to have a rather substantial rear element and that could cause problem with the 39mm thread. On a lens like the 35f1,2 (only 1/2 stop gain in speed, but considerably bigger front) - the rear element is simply too big to adapt to 39mm thread, As a matter of fact, it was discussed at one time in Nakano and I was told that the thread would have to be cut in the actual glass of the rear element! And we thought the Biogon 35mm 2,8 had a scary rear element!
I like the idea of having the two choices of the 35f1,4, either MC or SC. I have both of the 40's and I use them according to the mood I want to establish. The MC is sharp, contrasty and "modern", whilst the SC has a vintage look to it in bl/w. It is by no means less sharp than the MC version, but the softer rendition can be used for a more pleasing, smooth toned image. I haven't done any resolution tests on the 40's, but I suspect that they are very close to each other or, if anything, the SC has an edge there. Multicoating tends to fool us into thinking that higher contrast equals higher resolution,
As I said, I haven't handled the new 35's yet, only discussed what could be done with it. It looks very compact, only protruding about 28-29 mm from the body. Rougly the size of the old pre asph Summilux.