dunno, but from some matches I spectated maybe only:
(can top, jungle, mid, support... can carry but he is melee...)
(I've seen her top, mid, and jungle... he can be both melee and ranged so have potential to ADC... and heal plus ult to support...)
(has stun CC, can top or mid... ranged so can ADC... jungle maybe but maybe need leash although his ganking maybe good...)
(seen her top, mid, support, have DPS potential to ADC... now only jungle... but I think she can... especially with Pix passive...)
(her AD maybe still highest of any ranged champions, maybe can ADC too although her AA considered slow... seen her top, mid, support... maybe can be good jungler with ganking with her binding and clearing camp with tormented soil although that just got nerfed...)
(I've seen her top, jungle, mid, she is ranged mean maybe can be played as ADC... and support to heal and her spear can zone...)
that have potential to be able to play every role...