"If there's a Biden-MBS meeting, it may be situated more in some of the discussions that Sullivan had with the Saudis as well as the Emiratis and Indians earlier this spring, talking about regional co-operation, regional infrastructure projects," Brian Katulis, vice president of the Middle East Institute in Washington, told The National.
"But if we're talking about the separate file of Israel-Saudi normalisation deal, there's a lot of complicated issues on the US-Saudi bilateral front, which I don't think are ripe yet. I think that they're still in the very early stages."
Mr Katulis said Washington and Riyadh are still continuing discussions about arms sales, a defence treaty, and US support for a civilian nuclear programme that would include enriching uranium in Saudi Arabia.
Saudi Arabia has also long maintained that progress towards peace with the Palestinians would be required before normalisation talks with Israel.