New Mage items don't add much diversity.
My main is supper zyra atm. Just looking at the new items I don't see any really exciting changes for items. Part of the problem is I can't see her changes yet but so far it seems to me I will still have to build liandrys and rylias. And with the new hexatech items this will lock in a 3rd mandatory item. After that might as well automatically buy them for me when I recall.