According to a Wednesday Axios report citing sources, the United States, Iran, and the mediators are discussing the possibility of advancing the signing of a memorandum of understanding to as early as today, electronically.
The report says the delegations are still expected to meet on Friday in Switzerland, even if the signing is moved up. The purpose of accelerating the signing is to allow the Strait of Hormuz to be opened as soon as possible, before Friday.
The article does not provide further details on the contents of the memorandum or the participants in the talks, but it presents the possible early signing as part of the ongoing U.S.-Iran diplomatic track.