foot/ankle series - part 3 ??

I di a mini challenge with the foot/ankle series and another Kayla ankle workout. In the foot/ankle series Kayla says she's looking forward to doing part 3. In the post about part 2 it says this: "This video concludes my contribution to the Foot and Ankle series - excited to do Part 3 along with you and our mystery collaborator. Who do you think it will be?! Give us your best guess in the comments below."

Maybe I'm not looking for the right name, but was there ever a part 3? I can't find it..