The US Servers will come down on Thursday, March 7, at 7:00 am Pacific* for an update. The expected downtime for US servers is one hour. The EU Servers will come down at 9:00 pm Pacific* on 3/7 (5:00 am London* on 3/8). The estimated downtime for EU servers is 2 hours.
Update Notes will be posted here when available: Game Update Notes.