>>17526176I'm fairly certain we did. I was following the .PKX thread on Project Pokemon for a while when somebody claimed they discovered where the Mega stones were held in the game data. They said if they were right, then there were still 2 more undiscovered stones. The leaks of M-Latios and M-Latias happened a couple of weeks later.
I'll have to check the thread. I know it was pruned a lot by the mods to keep it clean, but I know for a fact somebody mentioned the 2 unkown mega stones somewhere in there.