i guess i'm the only fan of marowak on this site. there haven't been any decent maroway cards and i think a good way to make it up to all of us marowak lovers is to make a lv x version. although i wouldn't mind just a decent regular version for starters.
but other than that:
sandslash lv x
lapras lv x
weavile lv x
pincer lv x-i think that they need to make better pincer cards too
and if they have glaceon and leafeon lv x then i think they should make one for the other eveelutions too.
Machamp Lv. X (Confirmed Finally)
Ampharos Lv. X
Houndoom Lv. X
Tyranitar Lv. X
Alakazam Lv. X
Golem Lv. X
Shiftry Lv. X
Crawdaunt Lv. X
and Flygon Lv. X
Rampardos Lv. X
Bastiodon Lv. X
Delcatty Lv. X
Manaphy Lv. X
Phione Lv. X
Manectric Lv. X
Probopass Lv. X
Tangrowth Lv. X
Altaria Lv. X
Absol Lv. X
Pachirisu Lv. X
Tentacruel Lv. X
Dodrio Lv. X
gallade Lv. X
scizor Lv. X
flygon Lv.X
hippowdon lv. X (don't ask me why they're all fighting)
I heard a rumor about bastiodon and rampardos being Lv.X's a while ago, somewhere around right before secret wonders to right after great encounters ? I don't know