Chespin, Froakie and Fennekin are a given, since Genesect is 649.
Xerneas and Yveltal are just placeholder numbers until we see how many Pokemon their are. Xerneas theoretically should be before Yveltal because of "X and Y", with X (Xerneas) first in the grouping. [DP- Dialga comes before Palkia; "Black and White"- Reshiram is on the cover of Black, it comes before Zekrom]
