From the announcement:
...we think it would be awesome if reps from the GoW, the GoG, the GoC and the GoMa could attend, plus any other interested parties across the cavern. WE may hold another meeting at a later date for this purpose if it proves necessary, as a large chunk of the meeting will probably working out things within the GoMe itself.
Some of the topics we will be covering are in this discussion at the Guild of Messengers forum; most of the meat of the discussion is on page 2 of that topic. Of special interest to the other guilds is a proposal that we make arrangements for a liaison to each of the other guilds. The Guild of Writers has asked for one (to yet be determined), and recently Kerryth has volunteered to be the GoMe liaison to the Maintainers.
Any Writers are welcome to add suggestions to this very discussion thread, in case you are unable to attend. The GoMe has also caught a little flack over the forum signup process, so until that problem is ironed out, I want to make the "virtual suggestion box" as accessible as possible.