I would like someone to publish the SRD once all of it is released officially, preferably as a PDF, under the title "D20 System Developer's Kit" or something like that. Include a chapter that answers all of the FAQ regarding the OGL and D20STL. If it's a PDF, then you can hyperlink to documents and sites that go into more detail or allow access to a larger development community.
I would like for the entire D20 publishing community to chip in as they are able to pay for a comprehensive market survey, as the 1999 WotC survey is fast becoming irrelevant. Furthermore, I'd like this to be a regular annual or biannual undertaking. Numbers are necessary, and they need to be current.
I would like for more D20 publishers to make greater use of the established library of Open Game Content. What I've seen is a good start, but this is not enough. By the same token, all efforts to archive and make accessable the collected Open Game Content should receive across-the-board support from all D20 publishers.
I would like for English-language D20 publishers to look into more non-English properties to translate and convert into English D20 products. Tenra Basho, out of Japan, would be a good start as it's very popular and very familiar to the D20 user network.
I would like for there to be more options for organized gaming outside the gaming convention scene, such as one run entirely through the Internet. (By that, I mean that the 'Net is the means by which home-based groups communicate with the campaign's administration; TORG would actually work now that there is the sufficient online infrastructure in place.)
I want D20 TORG. It's nowhere near as hard as it seems, thanks to the publishing efforts of the D20 community. Organized Play or the RPGA could easily run this as their first inhouse-generated Living Campaign.