Can any of you good Legion fans explain to me what, exactly, was going on in the Legion of Super-Villains storyline that ended the last run of LSH?

What was the point?

Who was the blue entity? Was he supposed to be familiar to comic readers? Did it have something to do with Amethyst? At first I thought he was going to be revealed as Eclipso, but that doesn't seem to be the case.

Same thing with Harmonia Lee. Who was/is she? Amethyst?

And the World of Wisdom, same thing. Was I supposed  to recognize this world? The other two of the three worlds were easily recognizable: Oa and the Rock of Eternity.

Lightening n Chemicals suggested that there were "6-8 more issues of potential story was crammed into a hastily conceived and thoroughly unsatisfying conclusive issue."

The 4-5 preceding this final issue seemed to be excruciatingly drawn out and merely pointless punch-ups filled with personality deficient characters.

Why couldn't Levitz use some of these issues to get to his point?