When it comes to these 100% new C64s, I kinda wonder about VIC-II (C64 video chip) and perhaps SID (sound chip). There might still be undiscovered VIC-II exploi

When it comes to these 100% new C64s, I kinda wonder about VIC-II (C64 video chip) and perhaps SID (sound chip). There might still be undiscovered VIC-II exploits. After all, it's not that long ago sprite crunching was discovered. Perhaps there are still other useful undiscovered hacks you could pull off. Are there any efforts to decap VIC-II and create a 100% clone?