My employer (LYRASIS) is a member of NISO (the accredited standards organization for information and documentation in the U.S.), and as the primary contact I see and consider ballots for standards issues that impact LYRASIS member libraries. The Interlibrary Loan (ILL) Application Protocol Specification (a.k.a. ISO 10160/10161) is up for its periodic review, and there is a bit of interesting movement on this standard. ISO 10160/10161 became a standard in 1993 so it predates the modern era of the web. The group shepherding the standard realized that progress had overtaken the specification and they started work on a reformulation of inter-machine ILL standards. This ballot and its supplemental documentation gives a view of the plans.