Thanks all for the replies so far. Yeah, there's a lot sort of mixed in here.
I do think that sooner or later, she'll get around to forming it with her lawyer and send it over to me, so I don't think there's a world where we go straight to D proceedings or we start to seriously talk about reconciliation/next steps. To phrase it another way, this is likely the next phase, regardless of whether it's initiated by me or initiated by here. So if I'm the one who forms the first document, then in theory I get to set the first terms, and to signal to her that I'm not just going to sit around passively forever, waiting for her to tell me how my life is going to go.
On the flip side, I can absolutely understand the psychology of not making it easier for her, and also making her go through with the mental exercise of facing the reality of the situation and assessing if it's what she really wants.