It really bothers me how they're all "WE'RE EXPLORING NEW LORE DELIVERY METHODS", and they're always delivered as login screens and "sneak peeks" leading up to the release of the champion, which is GOOD, but frankly lacking and unefficient. I consider those to be "soft" lore, whereas I'm really interested in "hard" lore, which is not necessarily a giant chunk of text (though I would buy a LoL book in a heartbeat), but rather something that delivers more than just a little bit of lore.
I've seen the suggestion of a comic or graphic novel thrown around and I really do think that would be a great idea, because it isn't a wall of text and it has the opportunity to tell a little more than, for example, what Quinn's sneak peek art did. Imagine a 2-part graphic novel about the Noxian invasion of Ionia and the Ionian retaliation, or an ongoing series about Vayne's investigation of the Black Rose and Noxus, or just about anything else. The possibilities are endless, and I feel like, if all we continue getting is sneak peek and login delivery, we're only going to get new lore, or at best, slightly continued lore due to the addition of a new champion in an arc, but never a true continuation of anything happening in Runeterra.
If the lore continues, that could mean new and interesting things for champions, and not only that, but it could also have in-game repercussions. Riven could decide, for example, that Noxus is not to be trusted again for their misdeeds, and decides to immigrate to Demacia to join their army to fight back against them, which could result in a new Riven skin featuring her in Demacian armour, and she would thus no longer be considered to be affiliated with Noxus.