We're about to find out. I just ordered this for my V6. I'll update my post once I confirm.
Edit: I can confirm the foam fits the v6 with one minor caveat. The PCB and plate foams fit perfectly. It would appear as if they have slightly changed the location of the underglow LEDs near the space bar. I had to manipulate the foam to get it to fit around two of the LEDs. There's always a slight chance the foam could work its way loose, causing it to block off half of each of the two LEDs. If you care about the underglow, you may want to trim the foam a bit around those areas. Other than that, it fits great and makes a big difference in the sound. There's still the tiny bit of ping you would expect from a steel plate but it no longer sounds hollow. 10/10, would buy again.