[Solitaired]

Yes you almost got all the future plot twists.

Spoiler for Spoiler for Monomi::

Monomi was actually called Usami. In the beginning after she told the students to collect hope shards, there is a cheery OP. After Monokuma appeared and changed her to Monomi, a second OP started alike to the first game's. I realise myself then that there are 2 organisations in this game.

Spoiler for Further hints::

As per the first game, there are moles as well. You could think about that as well.

Spoiler for Spoiler for Junko:

But you haven't got close to what is Junko's goal in this game. She is not the sort of person that will be satisfied with hijacking the future foundation's plan. She has 2 goals which you can try to analyse. 1 should be really simple if you look at the big picture of why she wants to conduct a second murder game that mirrors the first.