Based on the cards that were revealed by Bulbapedia (Espeon Prime and Kyogre/Groudon Legend) and the numbers assigned to them, it looks like Dialga and Palkia Legend are not gonna be in the set:
Espeon (81/90 - as revealed by Bulbapedia scans)
Kyogre/Groudon (87,88/90 - as revealed by Bulbapedia scans)
This would mean:
Houndoom (82/90)
Raichu (83/90)
Scizor (84/90)
Slowking (85/90)
Umbreon (86/90)
Rayquaza/Deoxys (89,90/90)
Espeon (81/90 - as revealed by Bulbapedia scans)
Kyogre/Groudon (87,88/90 - as revealed by Bulbapedia scans)
This would mean:
Houndoom (82/90)
Raichu (83/90)
Scizor (84/90)
Slowking (85/90)
Umbreon (86/90)
Rayquaza/Deoxys (89,90/90)