Board Thread:Kancolle Arcade/@comment-32724723-20190926111827/@comment-33355585-20190927115326

Yes, you can obtain previous events shipgirls in later events.

You might want to see this: https://kancolle.fandom.com/wiki/Drop_List

Go to the "Event-Only Ships" and expand the table, there is information about the drop of event-only ships, included Warspite.