What about NWs from ideologies?
With the changes to t3 tenets (before this version), mainly Palace of Culture and Science seems weak.
I think increasing the modifiers to 25% should be ok.
On Tradition-Sankore, Sankore feels too much Science and no Food for Tradition. I also don't like the free mosque because if you go with few cities and has a chance on this free mosque you don't wanna pick the mosque belief.
An idea I have is if we keep Sankore as Tradition wonder, is to change Sankore to a food-GP oriented Wonder (maybe +food/production in city when you expend a GP), and add +Science when you expend a GP to Tradition (to that policy that gives Culture and GA when you exped a GP) but also reduces the Culture from that policy (to something like +50GA, 25 Science and Culture or +30 of each). This way we reduce a bit of the culture from GP spam.
Edit: (kind off-topic) G, is it possible to add +Religious Pressure from worked Holy Sites? (maybe requires a building, like temple).