I already suspected this yesterday morning when only the spoilers from baidu are out. But I had homework so I wasn’t able to make a post like this. But it seems littlemissymonster has beaten me to it. orz
But, however I do want to point out that Shikorae does indeed have all 4 kagune types. Because he is Rio, and Rio in Tokyo Ghoul Jail, have 4 kagune types that you can chose from.
Rinkaku
When the Quinx were in Uta’s mask shop, Haise was holding what is likely to be Rio’s Rinkaku mask
This implies that Rio has a rinkaku kagune type, and since Shikorae is Rio, Shikorae has a rinkaku kagune.
At first I thought rinkaku was his only kagune type because of that, but chapter 63 shows more.
Bikaku
From chapter 63, Shikorae finally uses his kagune. He first showed his bikaku kagune, and it’s similar to Rio’s bikaku kagune
Ukaku
and then Shikorae uses his ukaku kagune which is also similar to Rio’s ukaku.
Koukaku
There is no evidence yet that Shikorae also has a koukaku, but since we now know that he has 3 kagune types, it’s highly likely that he has a koukaku kagune too, and he might use it later in the manga.
Whoa, a ghoul with all 4 kagune types. What does that make him? He doesn’t have a dual kagune. He has quadruple kagune (⊙0⊙)