Will this work in a C128?
More specifically, in C64 mode on a C128? Although it would be pretty cool to also have it available in C128 40 column mode.
Unfortunately, VIC-IIe has different pinout, so there is no way to physically install current revision of BeamRacer in a C128.
Dedicated version would have to be created - always a possibility if there is enough interest in the community.