1. there is no known way to decrypt 3ds roms, so no one is going to be able to rip anything out of the rom.
2. there is no known way to cheat on 3ds games, so there is no way to use cheat codes to force different pokemon to appear.
3. because the 3ds is still locked down, everything about the game will need to be discovered ingame by someone before it can ever bee reported, this mean, no complete dex list even including the hidden end of the dex event Pokemon. no move lists, no what the movs even do, no abiity lists, no hidden ability list, no what gets mega forms, no item lists, no egg move lists(this is kinda serious, someone will need to try to breed every move possible on every pokemon to get a complete list) no list of what Pokemon can be found where at what level and how rare the encounter.
this gen we all are going to be going in to it extremely blind compared to past generations