The Dirt Magnet from Finegear is likely done and ready for market.
But also something very interesting is the Modmix, which may look very different from this.
Send effects, CV controls, build in envelope followers, and LFOs, and who knows what, the design was very amorphous last year.
From the SFF show and in general, a few companies are working on mixers intended for synthesis, that should be interesting for people that hang around this forum.
I’m pinning hope on the Modmix.
ADDED : Two other companies at SB working on those sorts of mixers are Menura, and FCPro.