>>58493558
Iono is mostly replacable with lillie now. The 4x iono lists have swapped to primarily lillie
As for the rest we really dunno. It's still a while off so there's time for them to print more cards to replace whatevers missing. Petrel can cope replace arven but with arven and town store leaving, as well as TMs, tools look to be very difficult to search for now and not really worth including
I expect another supportmon like squawk/lumineon to get reprinted, if it is another supporter search one like lumineon then you can run brock who can fetch 2x basics or cyrano for big basic decks

These are currently the relevant cards we'll lose to rotation next year.