Primeape and giant Dragonite never happened. Jigglypuff hasn't returned since early advanced generation.
Charizard, Squirtle and Gligar are Ash's only returning pokemon.
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Nio-chan and Ctes: http://img.imgcake.com/nio/Untitledpngyn.png
BroAndCharAndCtes: http://i.imgur.com/oBQfY.png