You beated me Steph to it
Yeah, this is weird! Usually FLC is revealed very late after DLC itself......So this feels like something else. DE having FLC means most likely DE are done with 6 LL right now. In that case I would say in LP are LM as they had LP the furthest back. LM vs BM. Rakarth is bringing "beastmaster" theme.
EDIT: not believe it can be Wh1 vs Wh1 DLC as that would require a lot time and money...