It's been 13 years. Time to let go.
We have FSO. We have tons of mods. We have an awesome community. And Volition is still out there doing lots of awesome stuff that has nothing to do with FS.
You'll find that 99% of the people around here are perfectly fine with this state of affair.
As you can expect, in 13 years, people have debated over and over again about what FS3 could be or what it should be or whatnot. Most of those ideas have evolved into fanfics, campaigns, mods. FS3 would kill all of this by putting FS canon on a single, narrow track to follow. The only thing it would achieve is dividing the community over whether we should accept it or reject it or whatnot. It is simpler, and objectively better, for everyone involved, to keep the status quo. It has worked well for us for more than a decade, and it has shown no sign to become otherwise in the foreseeable future.
Freespace is not dead. It's our job, it's your job, to keep it alive. That's what we're all here for. We have the tools for it, we have the will for it, and that's all we'll ever need.