And so it ends.
Season Four will be the last for Galactica.
Despite the happy talk, the reason seems pretty obvious: the odds for a fifth season were just about nil.
The good news is that this means the story arc should get the resolution it deserves. Those who remember Seasons 4 and 5 of Babylon 5 know what the precarious renewal status of the show meant for the plot: a hurried resolution of the Shadow War unsettled the remainder of 4 and left Season 5 in the doldrums until the halfway point.
The key word being "should." An uneven Season 3 gives some cause for concern. But nothing focuses the mind quite so effectively as the axe, so here's hoping.
Prediction: they don't get to Earth.