What do you want to see in the TCG, if you had input?
What I would primarily want is a dual release (Japan/US) that re-releases lots of original cards so they could be tournament legal, with the only things being changed are the Pokémon Powers being renamed as Poké-Powers.
This would appeal to older players, containing a mix of very old cards (some from Neo, Fossil, Basic, Team Rocket) with some Japanese ones (Vending, Web, VS, etc.)
It would include Unown R (the Neo-era CoroCoro promo) and Imakuni? (for those that remember the Game Boy TCG game)
I'd also like to see more items based on Generation I (like how Basic was).
Finally, the expansion would include some cards that were originally for Jamboree, creating a large set.
Additionally, Bill would un-classified as a Supporter, bringing it back to a status where you could use two Bills in a turn (besides, with Mom's Kindness, Bill is redundant)