The RG-350 is not a potential GCW Zero successor. It's a competitor with the exact same hardware specifications. In my view it will absolutely not replace the software development scene of the GCW Zero.
It does not require programs to be ported as most of of the GCW Zero software apparently is compatible. As long as the GCW Zero keeps receiving updates firmware compatible competing devices will be able to benefit as well.
The GCW Zero is not available for sale anymore and has not been available for years, how can it be a competitor?
The RG350 competitors are GDK350 and the imminent Pocketgo 2
I think many users will not want the GCW Zero development replaced, just developed further and improved upon if possible.
I will be happy enough with playing the existing awesome software developed by the great dingoo A320/GCW Zero devs perfectly on a cloned device with better controls and build quality. Any further improvement is a bonus.
Surkow, the new GDK350 has a more powerful custom MIPS processor than the GCW Zero as we are led to believe. Would you call device that a potential GCW Zero successor?