The overall consensus seems to be that H-20 will look something like a B-2, a flying wing, subsonic, very low radar crosssection.
But ... does that actually make sense anymore? Maybe it started out as such, but considering how heavily china has worked to build a dense sensor network to negate the stealth of US platforms, using power increases of AESA radars with new gallium technologies, satellite networks using bistatic, forward scatter and high-res SAR, combined with optical sensors and image recognition neural nets, + VHF / UHF HALE AWACS drones ...
Does china still bet on stealth? Or do they expect their own stealth platforms to loose the stealth advantage soon with the US replicating their counter-stealth efforts?
The J-36 is clearly a design of high kinematic capability, where they value the speed and range to dash out to choose the engagement.
Do they maybe think that an H-20 platform with B-2 / B-21 tier capabilities would lack the kinematics for survival?
I find it hard to believe that the Chinese would believe a subsonic bomber could fly to CONUS and drop a bomb there undetected.
One could reasonably assume that any high value asset will be real-time monitored by a satellite network in the not too near future.
I am not saying they're building a supersonic bomber, maybe they're not building any bomber as a result of such a conclusion.