I just got the scope and sequence from the online provider Spanish Academy. In Spanish 2 they cover Lesson themes include stem-changing verbs, irregular verbs, idiomatic negative phrases, preterite irregular verbs including radical verb changes, verb synonyms, and expressions with “vez.”, “ser,” “estar,” and “haber”; direct and indirect objects in sentences; personal “a”; prepositions; and intransitive verbs.
I think the answer to your question, though, is that there is not a standard content. I say this because my dc who just finished Spanish 1 with PAH covered about half of these topics to some degree in Spanish 2.
Looking at the two providers, I am expecting Spanish Academy to be less in-depth. Perhaps I will be pleasantly surprised.