I was quite satisfied with the result of the second expedition, despite the lack of combat. If we can accomplish our goals without fighting, so much the better. Sun-Tzu.
I have no present intention of authorizing an attack on a peaceful race... we have enough on our plate already, dealing with the technologically superior Prix in half a dozen star systems. Also, the potential gain from pursuing our "Forever War" against the Prix is probably higher than the profit we might make by fighting the Charlies, the Chix or the Seals.
Not sure about the refit to Magneto-Plasma drives. It is probably not needed, but it would very likely speed up the campaigns and reduce friendly casualties by making our ships harder to hit and our missiles harder to avoid. We have been accumulating a number of techs that are not implimented in our current crop of warships... better armor, better shields, better sensors, better drives. It's very tempting to take the fleet in for rebuilding.
Opinions?
If we decide not to rebuild the fleet in the next couple of years, we should at least rebuild the scouts.
Regardless of that decision, we will remain focussed on defeating the Prix and ejecting them from the entire volume of space near The Nexus.