Just came across this article and I have to say that I agree with the author. The Sabic acquisition was the main point of the plan to go public and the fact that Saudi Aramco is considering alternative sources of financing this deal gives us proof that the IPO is probably never going to happen.
https://www.bloomberg.com/opinion/articles/2018-11-19/saudi-aramco-sabic-deal-more-fodder-for-ipo-skepticism