I think we have hot-fixed the last remaining Castor issues with the reboot last night. That reboot was for code updating many agent missions and bringing back scenario NPC infestations. Scenarios like "The Training Grounds" and "Golgothan Fields" should have NPCs again.
We already have the prepped the next update and it's currently running on Chaos, that update should be the end of all grid-exploits in EVE. This update needs a good deal of testing which we hope to achieve over Christmas.
We here at CCP whish you a merry Christmas.