We've been quite aware of the declining interest in Freespace, and have our eyes open for other things we can expand into, within the GS limits imposed upon us. Artwork there will always be, but as for a game? I honestly don't know. Remember that the SCP will never be truly "completed", since people will always be adding things to it.
I hold the Battlezone community in the utmost respect for their single (that I know of - not that I've looked for any more, really) completed project, the Battlezone II Community Project. IMHO they did an outstanding job on the administration and coordination of that project, with great PR and everything. It seemed like a project that the whole community was behind, as opposed to the dozens of campaign ideas that have cropped up for FS2.
Which is kinda ironic, don'tcha think?
Anyway, if I had my way, the community would all jump behind one or two projects with potential to draw the most attention from the outside world, such as the B5 and Star Wars TCs. Add to that a concentrated effort by SCP coders to capitulate to the needs of those MODs, such as cycling lasers for SW, or whatever for B5 (never saw it, really), and you'd have the best engine for SW gaming, and the only (?) engine for B5 gaming.
Just think about it: Gamespy, Gamespot, and Games Domain doing complete reviews of a completed and comprehensive Star Wars Total conversion to the now-freely available FS2 engine. They undoubtable point out the thriving, active community here, all surrounding a game that is 4 years old - unheard of! Add on perhaps a few good banner ads in the GS banner network, and various other beneficial stuff (like a truly pro website), and things would really take off.