It would be nice to see some of these pens offered with broad nibs....
Would be nice, but...
Perhaps you can swap them with the size you like.
I think I'm in agreement with mke, in the these are 'commodity' Bock nibs in the industry that consumers can source from different retail channels. The Chinese fountain pen market has relatively little use for Broad nibs, when even a 0.7mm Medium nib would "force" users writing in Chinese kaishu
characters to require (as large as) a 1cm-squared grid. In the Western world, fountain pen brands sometimes don't even offer EF nibs (for writing in English or any other language that benefits from it by a segment of prospective customers and users) and their EF nibs often aren't even all that narrow; equally they don't always offer Italic nibs, which are primarily used for writing in English (or at least some language based on a Latin alphabet). These are minority preferences in those Western brands' primary target market, and when those "special" nibs are offered as options, the customer may be asked to pay more for them. In the case of Chinese fountain pen brands, Broad nibs are definitely a minority preference in their primary target market, so in the first instance I'd expect that there would be additional cost to the manufacturers to accommodate those requests that come in low volumes, and recoup that cost of offering the "would be nice" option by asking customers who want it to pay more for it.
And I understand some prospective customers might balk at that, but the beauty here is they can then go buy a Bock Broad nib from a Western retail source that consider a request for that item nothing out of the ordinary.
for the sake of Mooman
I was really hoping they would be the first to produce a really really nice looking, original, high quality, Chinese pen! (for us to love)
You remember the history of photography when Nikon copied German brands?
One day they got it right and never looked back.
I seriously doubt that is Moonman's ambition or aspiration. The company does have/offer original pen designs, as I understand it. Producing something "really really nice looking, original, high quality, Chinese" is a commercial risk. I'm also getting the impression that, if Moonman did come up with a steel-nibbed pen that match your description, and offered it at, say, US$120 to compete with an Italian pen priced at US$150 that are considered equivalent, you probably wouldn't buy the Chinese pen at that price even though the 25%-higher price tag probably won't stop you and other consumers in the market from buying the Italian pen. I personally don't think it'll sell well at all in the all-important domestic Chinese market, or even in the broader global market where Western fountain pen buyers are a smaller proportion of the whole; but that's just my opinion and conjecture, with no market intelligence or research to back it up.
Then there's the issue of, even if it achieves some success with one such model, other companies in China (and possibly elsewhere, too) could just copy the design and flood the market with a cheaper "knock-off".
It's about profitability, at the end of the day, if we want to propose something "for the sake of Moonman" — where Moonman's objectives and priorities are what matter first and foremost. I don't see — as in cannot imagine, since I'm not part of that company in any capacity — the point in offering something "really really nice looking, original, high quality" for US$40 that would deliver subjective customer satisfaction comparable to what a >US$100 pen would offer; it neither elevates the brand, nor the prestige of Chinese manufacture as a whole.
Maybe one day Moonman and PenBBS will be the new Sailor and Platinum, but I don't think that's on the cards in the next ten years. "Famous last words", though; time may well prove me utterly wrong.