Do you think that is Maine (The Meta) at the end of the episode or Tex?
Keep in mind that we never saw the Meta die (like a fall from a cliff will kill him after all he's been through prior to that event) and the person at the end has black armour which it Tex's colour.
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It was dark grey and green. I don't think it was Tex (who's completely black) or Meta (who's white).