Twistybox: It was my understanding that the 990 went out of production because parts became unavailable. However, I agree with the general thrust of you post and agree that we should have seen a 990 Model 2.

Certainly Inkel could have done this because Sherwood markets a R-772 receiver which seems to have 990 type features (not talking about sound quality) with HDMI. In addition, they sell the R-972 (the 997 equivalent) and the R-977 (a Networking receiver which feature-wise seems similar to the Marantz line).
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Living Room 24x18 open 1/2 flight up to a raised dining room/hall 24x12
Outlaw 976 pre-pro running 5.1 system
Outlaw 750 for Artison Masterpiece LCR and 2 NHT SuperZeros rears
Velodyne Servo FX-1200
LG OLED65C8PUA via HDMI2 to/from 976 HDMI ARC
Roku Ultra
Samsung BD-D5500 BluRay
Amazon FireStick 4K to 976 Aux HDMI input for Amazon Music Ultra