In the later part of G1's life the world of bionicle was so massive that following all of the various storylines was quite intensive. As such there were many times that it felt like the world was leading up to something but then would quickly brush the details under the carpet so the overarching theme for the year would be the most prominent.
So my question is, what would have been some interesting stories to be expanded if LEGO had more resources to follow though on creating them.
Personally I really wished that Teridax's Reign was more fleshed out. To me it felt like there was all of this potential for minor characters to really show how interesting they were(characters like the chronicler's company or Helrix) but the arc was either too brief or simply not covered at all when they suddenly showed up at Spherus Magna.