Masquerain, claydol, archeops (this one could be really interesting tcg play-wise if they did something with Defeatist), tropius, grumpig, miltank, kabutops, togekiss, mega lopunny, rhyperior, jumpluff, milotic, yanmega, excadrill, ferrothorn, mienshao
I would like to see them give some love to so many pokemon you cojld probably make up a set of just these: lake guardians, arcanine, regice, suicune, cresselia, moltres, clefable, wigglytuff victreebel, ludicolo, shiftry, exploud, cradilly, armaldo, luxray, 1st gen dp era evolutions, 2nd gen starters and bw 2nd stage evos. Anything xy and on doesn’t need mentioning as we have just had them.
Latias, she didn’t have any ultra rares during the XY era and meanwhile Latios had various EX cards. Fair? Suicune’s unfair treatment needs to end as well.
And for my own interests: Rayquaza, Salamence, Flygon… Salamence needs that Full Art finally!
It all doesn’t matter which Pokémon, TCPi will just rehash all basic strategies. They’re not original in what they do. Gardevoir GX was just rehash of old card, Buzzwole is nothing special in game-play wise and with the revamp of Greninja it all is going to become the same. If they add one of the lesser knowns and add some kick ass strats with them, like just pure deck destruction instead of bench destruction (Decidueye) the game becomes more dynamic, and more dynamic game means more dynamic cards which means better sets.