I agree, whie zekes can use some changes, it should stay an ad-item, allowing champions like ashe or J4 to support.
If you feel the need of yet another ap-support item, especially one that says Adc-slave more than any other item and has the potential to break the game with an absurd crit steroid, go ahead and bring it, but do so as new item.
Zeke's and his ancestor Stark's always have been suportive items for ad-cahmps that give lifesteal and benefit physical damage. If you want to Rework Zeke's, please let it stay in it's niche as support item form ad-champs for ad-champs.
The planned change takes everything Zeke's has ever been, throws it out the window and does something totall different. It's like Karmas rework, you mostly removed a champ, replaced it with a new one but kept the name, which felt like mockery vs the fans of old karma, saying them there chamo still is there even though it clearly isn't.
Don't make the same mistake with Zeke's.
Also, we already have plenty of different ap-support items for many different situations. some off them are rarly seen and could use a little bit love tough. I'd rather prefer puting some more work on item's like
, the active could use a buff, like increasing the reveal duratiion and the speed of the ghosts, or
, let it proc from buffs like Nunu's W or Zilean's E to make it appealing for more differnt champs...