I've seen comments from Eric V Smith in this thread and in the PR. If he's in favor and it can be done in a backwards compatible way then he can guide you to acceptance and merging of your PR. But like all of us he has limited time.

On Wed, Mar 10, 2021 at 6:15 AM Laurie O <laurie_opperman@hotmail.com> wrote:
I've had tens of people show interest in my proposal, asking what the blocker is in acceptance. As far as I know, no Python developer has shown any interest in it.

My proposal is to automatically make any non-default fields become keyword-only `__init__` parameters, with no need to have any arguments passed to the `dataclass` decorator.

My PR: https://github.com/python/cpython/pull/17322

My previous mailing-list message: https://mail.python.org/archives/list/python-ideas@python.org/message/2V2SCUFMK7PK3DVA7D77AVXWIXNTSQDK/
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