if I remember correctly: FourPlay was one of the original title propositions for A4O wasn't it? I also notice that some of those concepts read as part of the "Future" series, which I find a little odd, given that ACiT was supposed to be the last part of the "Future" saga, but perhaps Insomniac Games originally planned the Future tag to be used for all PS3 Ratchet titles, given that they're on the "Next Gen" console as opposed to the origin of R&C which was the PS2? (I hope what I just said made sense by the way…
And as for the Qore video, The cutscenes look really good, and the gameplay looks better than ever! I'd say more, but I seem to have summarised the video already
Well you are on the right track there lombaxdude. Insomniac were planning to make A4O part of the Future Saga, but they realized using the original models to add in A4O didn't really work well with the co-op gameplay. So this is one of the reasons why IG decided to stylized the character models and made it as it's own game, kind of like with Ratchet Deadlock where it follows the previous event from the first game to Up Your Arsenal, but being it's own title.