Round 5a has two grey tones with Honey and Cadet, then there's 1976 which should get a run as soon as SP has a slot, SA Retro ran recently and there's always the Filco brown / beige set (
http://www.keyboardco.com/product/double_shot_filco_104_key_usa_keyset.asp). Green Screen and Retroblight are incoming, as is Penumbra Round 2, which should have a Solarised alphas again (lovely combination). Not enough retro for you? I've got a beige / brown set design waiting in the wings for Classic Space to complete (WCK alphas, TAA mods). Patience. These
are the sets you're looking for. And if they're not, then one will come soon enough.
And like I said before: If the set design you desire doesn't exist, why not make it yourself and run a GB (after Dasher / Dancer)?
The Novatouch is a Topre with MX sliders. There are cheap boards with Topre compatible MX sliders like the Noppoo and Royal Kludge boards. JTK makes Topre MX sliders that were included in their debut GB. Any of the last three options will fit a full size Realforce. This is the direction the manufacturers are going, so I don't think there's any need to further segment the community by trying to get more Topre slider caps made. Alps is a different story, since the Alps switches don't have room inside the switch for MX stems, so you HAVE to use Alps stems.
I honestly feel a bit like you are simply complaining about the things you want, expecting people to hand them to you on a plate, ie 'entitlement', but I also know you are doing something about it (at least one of them) with your Dasher / Dancer set, so your posts here are a little confusing to me.
There are many 'factions' in this community, with different tastes and goals, so I'm all for having more set options. Maybe it is best that the "classic colourway sets" get run only through PMK, since they're not like the majority of designs that are based on a theme and include a lot more design work. They'd probably have a "slow, but steady" stream of orders and would suit being on the PMK store, especially if they don't have any child kits, or just the basics (numpad and ISO).
I do plan to give the rights to SP to continue to make my brown/beige design after the initial GB, since although it's a "themed" set with novelties, it's also a good general set with colours that suit a large number of boards and can be used without the novelties as simply a nice set that would be at home in any place you'd find a typewriter
Classic Space is most likely going to be a one-off, single GB run, as the design is only complete with the custom caps and novelties and we want to keep it more of a collector's item.