PvP is side content. Side content typically doesn't get much mention on PLLs or interviews unless there's a significant update to it incoming. Hence, we know about the new map we'll be getting, but that's pretty much it.

Crystalline Conflict is fine. Ranked is basically pointless and meaningless, but most people have moved to Casual anyway, so it's whatever. Frontlines is "side content of the side content" and Rival Wings they just become selectively deaf when asked about.