"if your postulating that Theonomy has evolved to the point that eschatology no longer matters then I have to ask can you be a Theonomic pre-millenialist?"

I think the answer is already in your question.

That is, if I am saying that eschatology no longer matters to being a Theonomist, then yes you can be a Theonomic pre-millenialist. You could be a Theonomic anythingist if eschatology no longer matters.