Hello, this is my first post
I always mused "what if" Atari released a new hardware 8-bit somewhere in the mid 80's! That's why I really like this project.
If it was "my" project:
CPU: 32x speed is acceptable, even 16x is enough.
ANTIC: twice the resolution of graphics modes is acceptable. I am also thinking about "bitplanes". For example, a two independent "ANTIC-5 plus" modes (320x192 overall screen resolution). Independent scrolling and 4 colors per char. Can be combined into one bitplan, so it gave us 16 colors for chars.
GTIA: max. 4096 color palette, with a little "twist" - I mean not very accurate representation of RGB, which would bring the "character", which original Atari and other 8-bit computers had. Let's say, 64 colors with 64 shadows.
More sprites. Hi-res sprites! RGB scart or video composite is ok. Yes, CRT does add a lot to nostalgia trip.
POKEY: more channels plus kind of new features for Atari: PWM modulation and two (digital) filters (with LP, HP, BP modes)...