I started to post about this but yours beat me to it. 
Korg’s latest - $299 USD Korg Monologue - http://www.korg.com/us/products/synthesizers/monologue/
Of some interest to me is that it seems to bring back some features from the Monotribe - chiefly the Monotribe’s LFO options which includes ‘one shot, slow, and fast’ with a fast mode that goes way way up there. Super fun on the Monotribe.
I’m a bit done with monosynths at this point but as I’ve wanted to get another Monotribe and mod it out for Midi and such… this might be the better alternative. Sounds a bit different from the Monotribe too. But I just like how some of that strange little box’s features have shown back up.
Korg’s intro video: