On the Bleachwikia site can we change the now stolen bankai's of Byakuya Kuchiki, Soi-fon, Yamamoto Genryusai, Chojiro Sasakibe, Sajin Komamura and Toshiro Hitsugaya as former abilities? Or would it make things complicated? At the least say that its an ability they did possess in the bankai description.
Theoretically speaking their bankai could not return for the next 100+ chapters. And considering they cannot use their bankai, isn't it a former ability? I.e An ability that they "did" possess.
Note: I put Yamamoto and Chojiro into the mix, even though they are dead, before their death they did have theirs stolen.