The not exactly retirement of the remaining Losers--Cougar, Jake, Pooch. Finding Home is the 'anchor' piece--the first written and what the series grew off of--and Cougar/Jake, numbering of the series subject to change with prompt and request pieces thrown in. Heavy population of OCs and random crossovers in the series.
Scenes from San Antonio is just that. Each chapter sort of it's own story and if there's more to it eventually will have various places in timeline so chapters noted where they're at on timeline in notes. Del Rio: Expendable Odds and Ends are just that--prompt fic one shots that fall into the verse, chapters noted where they're at on timeline in Series notes.