Time for my thought.
The episode was pretty good. Had an unexpected team up with a rather expected betrayal. And I love how Zi-O II's powers come with the ability to get a redo. I also really didn't like the power of the Kikai Watch. So can it control construction workers only, or people in general? Because I do not get a good feeling about that watch. I can see it being used for villainous intent (and I thought Woz's Kikai finisher was kind of lame).
But the real meat of the episode came from the final moments. It looks like maybe Zi-O/Sougo went evil in the future because he didn't have any friends. And while that may seem lame to some, it kind of makes sense to me. If he closed his heart to the world, gained the power of a Kamen Rider, and later saw his grandfather and only family die; he might have decided power was the only thing that mattered. Thus, Oma Zi-O. It looked like that was the same revelation Tsukuyomi was making too, until she made the realization that Zi-O might be manipulating time with his will power. Geiz has been given the power to become Geiz Revive, and the watch for Another Zi-O has been revealed... This is going to make for some juicy story in the episodes to follow!
Also, interesting use of Engrish. I can see how "We'll" would be confused for "Will". Or maybe it's suppose to be a sentence without the subject word at the start. "(We) will be BFF." / "(I) will be king."