Scheme Request for Implementation 148, "Eager syntax-rules," by Marc Nieper-Wißkirchen, has gone into "final" status.
The document and an archive of the discussion are available at <https://srfi.schemers.org/srfi-148/>. Here's the abstract: Writing powerful syntax-rules macros is hard because they do not compose well: The arguments of a macro expansion are not expanded. This SRFI defines an easy to comprehend high-level system for writing powerful, composable (or eager) macros, two of whose defining features are that its macro arguments are (in general) eagerly expanded and that it can be portably implemented in any Scheme implementation conforming to the R7RS. Regards, SRFI Editor