The huge fight was supposed to happen at Camal Keepstar (Derelik) - HQ system of Purple Helmeted Warriors alliance (Faspera is their second core system).
The TiDi around Jita park was due to PanFam redeployment toward Derelik (under 1000 ships). It always happens around, when a mass fleet jump is performed. The Ananah Constellation was hot yesterday - 2400 pilots in Mifrata and addition near 1000 pilots in nearby systems.
Attackers: Imperium + Snuff. Active defenders: PanFam + Fraternity + some local guys. Passive defenders: TEST. IDK what attackers should have done, but Vily officially informed everybody before that brawl that they have a deal to defend the Keepstar only this time. So, the Keepstar survived and in nearby systems proportional clashes happened between attackers and active defenders. Not a big deal - just warm up before a new war.