"So RoG'ers what do you think of the new changes will mean for the game"
I'm really happy with them actually.
To me, these changes will make a transition from a S2 where you would build some "core items" on champions (= always the same build on a champion, already known/expected since champ select) to a S3 where you'll have to build against the enemy champions. And you'll have all the options to do so, whatever these champs take (you always have something to counter Armor, MR or Life, with efficiency).
But that also means that you'll need a brain in S3, and not only to copy a solomid/mobafire/lolpro guide without even thinking (except maybe for ADC. But I'm waiting to test this specific part).