the timetable on the race website (registration needed) has it with Oude Kruisberg and at 268k, same final 90k as last year:
Flanders Classics SSO
www.rondevanvlaanderen.be
only change there is the early addition of Marlboroughstraat between Molenberg and Berendries.
But maybe it's not up to date anymore?
I have no idea, like Netserk said, they deleted a tweet with the profile and it said 286 km. Belgian media also picked it up.