They just exited the light strip arena (see: Lightstrip Sale & Discontinuation), so I’m guessing they’re unlikely to enter it again so quickly, even with a slightly different product (and especially in Z-Wave right now, given the issues they’ve had with their manufacturer). That being said, they do have a history of listening to the community, so maybe some day in the future if they see the potential!
FWIW, I think this would be cool as well. I don’t use lightstrips that don’t have tuneable white, so the plethora of 5-wire controllers are a no-go for me, and there are very few 6-wire ones (can’t think of any Z-Wave ones, but there are a couple off-brand Zigbee ones plus Hue, though they don’t really market that for standalone use and I’ve never tried, nor would I want to at that price).
So, this would be pretty cool! Like, basically a “light” version of their old lightstrips, just an RGB+CCT controller that can work with simple RGB+CCT lightstrips. My understanding is that part of what made their “old” lightstrips more expensive is the fact that the lightstrips themselves needed fancy electronics (and special connectors/endcaps where needed) in order to handle the “addressable” effects (also a point of confusion for some: as-is, the controller can address individual LEDs with the built-in effects, but you can’t on a custom basis). No worries about that here. 
(Though some “effects” like flashing/pulsing or color looping might still be do-able…)
Alas, this might be just a dream for the time being.