Wasn't able to *read* about it anywhere, but heard in a video or 2 that your progression/gear/paragons would "pass on" when the season ends... how so? Your toon becomes a fully playable one, or the stuff can be added onto another character?
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Oh I found it, gonna answer myself:
"Seasonal characters will take up one of the regular 12 or 15 character slots and will remain in this slot after the end of a season, simply having their Season status removed."