With these goals in mind we are starting to bring all champion bios up to today's standards. We’ve brought on some new creative designers (who we’ll introduce soon) to help make this happen, so it won’t impact new champion bios. What can you expect to see when we re-write a champion bio?
These stories feel empty because it seems like they'll never go anywhere. Rengar's goal is to kill Kha'Zix, and vice-versa. But this will most likely never actually play out, because doing so would involve killing off one of these champions. But, at least they have the Thrill of the Hunt to add some gameplay connection to the story. For Warwick's new lore, they tied him even deeper into conflict with Soraka, but in doing so gave him an unprogressable story as well. He now has the very defined goal of extracting Soraka's heart, which would presumably kill her. But even if that problem is somehow averted, once his transformation is stabilized, his character loses its conflict. Something similar would happen if the story moved in the other direction and Soraka manages to 'heal' Warwick.
This wouldn't be as much of a problem if the characters had more foundation to fall back on, but while it's easy to imagine that there's more to Warwick beyond Soraka than 'he's just another bounty hunter', we don't actually see it. At least not yet. Alternatively, these characters could gain another source of motivation, but that would imply a change from characters' lore pages being overall backgrounds and a core biography, to being 'the story so far...', which seems to be more the realm of something like the (now-defunct) Journal of Justice instead.
The Journal of Justice entries had very character-specific interactions, and ones that were rather large in scope, but they were modeled off of broader character concepts. Malzahar sent Kassadin's daughter to the Void, Garen and Katarina developed a rather interesting relationship, Swain rose to become the leader of Noxus. However, none of these events created dead-ends for themselves or others.
Unless the approach towards lore is taking a dramatic turn towards highly dynamic character development (that is, continually resolving and progressing champion identities, without fear for alienating the old ones), or accepting champion death as a real possibility, then much of the new lore is fundamentally hollow, because it bases characters largely around events that can never happen.
Riot has stated that they plan to broaden the methods by which the lore is presented. Conceivably, a lot of what seems bad now may feel fine once everything is in place. Hopefully, the feelings of shallower characters will seem silly in hindsight. However, either Riot has something big up their sleeve, or there may be genuine concern to be had for dead-ends being laid in the foundation.