I too was curious about how ATI's own version will look and perform compared to what is being done with the HTP-1. BUT... word is that project is cancelled. I won't even look at the Luxury-Market DataSat products.
But seriously, I suspect between Covid and the successes of the Monolith project, ATI decided not to dilute the pool too much. If anything, I would hope for a deeper partnership with Monoprice in refining the existing product with preparation for the HDMI 2.1 upgrade which will presumably/hopefully also bring it up to 8K and keep it even with the 2020 models from SU and Yamaha (and for the Gamers out there that are all still p!ssed about their new consoles not working and blaming everybody else for insisting on early adoption and the inherent problems that causes.)
That's neither here nor there. (BTW, I'm a gamer: I just know better than to buy a console prior to it getting shaken out properly which does not happen when racing to launch at Christmas.)
Beyond the HTP-1, in the Luxury Market, there is also Storm Audio and Trinnov. Then you have the Harmon designed SDP-55 which has been underperforming by many reports. Also Audio Control. Both of those latter items are bumping up against the Luxury-side with the top-tier Audio Control coming in at $9600.00 MSRP.