Worries about the state of Diana after mage reworj

This isn't a post saying that Diana is a mage. No I'm worried that due to some of the new items Diana will be broken, become flavor of the month, and nerfed to oblivion. Here's why:

Rod of ages will actually heal a small amount when abilities are used. This will work very well for Diana because she had a sheild to negate damage and while using her sheild she will heal while negating damage. While this is a small amount it could have a huge impact

Hextech protobelt: will become a core item on Diana due to the health and cdr it gives. This item is perfect for Diana and it will also give her another gap closer.

Abysal scepter: now provides cdr which is all that's needed to be said

With these 3 items Diana will have a bunch of health magic resist and 20% cdr as well as a bunch of ability power.

Diana is already tanky as she was meant to be an ap bruiser but riot failed to make brusier items and she is now an assassin.

Here's the brusier items she's been waiting for while her values are still very high. I'm not calling for a nerf as I main Diana but I do think that she could use a small rework