is one piece episode 490 filler?

Sengoku has declared the war officially over. While the Marines and the people of the world are celebrating the Marines' victory in the war, they lose sense of what really was going on.

They soon find out that with Whitebeard dead, more ruthless pirates will be coming ashore and torture the people. More pirates now know that the One Piece is real and so, more pirates will begin to form in search for One Piece.

Meanwhile, Lieutenant Commander Brannew tells Sengoku about Impel Down's state. Magellan is severely injured and blaming himself for the defeat.