Unlikely. Safari supports stateless filtering (ie the blocker app doesn’t get to see your traffic, but just submits rules), and Gorhill has said uBlock cannot work with this restriction[0]. I understand Apple’s wanting to keeping blocking apps from spying and to ensure performance of the blockers, but the lack of uBlock on iOS is a huge pain point for me.
The whole point of the parent comment asking is that you can now install proper WebExtensions, so depending on what APIs they allow, this could change.
[0] https://github.com/el1t/uBlock-Safari/issues/158