This would be the main Pokemon of the champion, E4, gym leaders, rivals, antagonists and any other main characters from the Sinnoh region.
The reason I need to know, is because everyone is theorising that mega Johto starters will be in Sun & Moon, as Kanto and Hoenn starters have megas, Unova and Kalos starters are too new to get megas, and Sinnoh starters will probably get megas in Sinnoh remakes.
Sinnoh remakes haven't been confirmed, but everyone seems to think that they will be coming out in the near future.
Using the same method of elimination, I want to see what other Pokemon would most probably get megas in Sinnoh remakes, and not Sun & Moon, by looking at signature Pokemon of Sinnoh characters.