Why cancel the show in the first place? Because they're fools. I am not making any excuses for them on that account. Since long term longevity appears to be completely off the table, at this point we want them to finish the remaining important stories. These would include story arcs more like the last two arcs of Season 5 which actually have consequences on the characters they have been developing. That may include investing more money in producing episodes which were originally planned for further out, but it is not out of the question.