The way they're describing Seasons makes me think of the way Sentinels of Light/Ruination worked; having all the champs that year (Viego, Gwen, Akshan, Vex) all revolve around Viego's attempts to cause the ruination.
That sort of thing yeah, though trying to do a much better job (fingers crossed) on how we go about doing it. I think some of the Sentinels/Ruination arc was quite good (the new champs, the set up etc). I think we dropped the ball when it came to the sort of story we told, the tone of some of it (inconsistent, sometimes too jokey), which existing champs were/weren't involved (Yorick where?, the mediums we were story telling in (a MOBA + text isn't the way to try and resolve these big arcs) etc.