Well, I have planned quite a bit of f/f action, but most of it won't be any time soon. The biggest jump in f/f content is likely to come once the eastern clan gets introduced, that clan being made up out of mostly women. Aside from that I also intend to introduce a female companion, add scenes with the current female cast and more.
But I can't put a timestamp on these things. At the time of writing there are no f/f scenes yet, only f/m and m/m.