I usually skim James' newsletters — he's very full of himself and could benefit from cutting his texts at least in half. But this list of things to add to general audience maps is pretty good: https://maphappenings.com/2023/12/07/santa-claus-list/ (at least half of it).
@zverik seems to be all about search and routing, applications not maps. Also no mention of cycle.travel which I think pretty much meets his cycling desiderata.