Another maybe valuable thing:
probably another useful heuristic to divided the open PEPs beyond proof-of-concept/no-proof-of-concept
is new-syntax/new-keywords/new-"funny"-semantics/ non-backward compatible
vs. infrastructure/library/etc/BDFL championed
Those PEPs espacially make peope wonder: will that happen to my favorite language, oh god, when?, it seems real soon now - gulp, gasp.
regards, Samuele Pedroni.