For the record, as far as I know, Fixed Camera is in as an unlockable (at the very least, they were 100% being worked on around the game's E3 reveal, but I wasn't sure if they'd gone through to the final game and still not certain, but there seems to be hints to it here), A/B Scenarios are a relic from development that were cut, and Rogue is a Rogue-Like Mode which randomizes enemy and item placement with different playable characters. First I've heard of Ada the Spy and I'm actually surprised Rogue might be something I guessed correctly from something else I heard.



EDIT: Thinking on it more, Rogue might be what turned into Hardcore in the final game. Don't take my mention of Rogue to be 100% here as it's me piecing together a few things from this and what I heard. A chance it could just have ended up as Hardcore Mode, or a chance it's its own separate thing, to be seen.