Looks like it's over.
https://www.globalconstructionreview.com/saudi-arabia-hires-consultants-to-probe-feasibility-of-500bn-the-line/Saudi Arabia’s sovereign wealth fund has asked consultants to review the feasibility of its “The Line” gigaproject, Bloomberg reported on Monday.
The Public Investment Fund has asked unnamed firms to look at whether the 170km-long linear city on its Red Sea coast can realistically be built.