This is probably the thing I would like the most in RawTherapee - a way to remove unwanted spots and mistakes (not sensor spots, but real physical spots, dirt, bruises, mistakes etc. on the motive) without having to bother going into an external editor. Also, having these things inside R.T. would mean you could store them losslessly in the .pp3 file the same way Adobe's raw loader does it. That concept really works well.
Is this something the developers are considering in some far future, or is there a whole different approach that is being considered?
I'd love to hear a bit about the future plans for RawTherapee in this regard.