Previously rumoured as A Star In Her Eye, episode one will in fact be called The Pilot, and will feature the debut of Pearl Mackie as new companion Bill Potts following last year's introduction in special clip Friend From The Future.
The BBC has also released a new promotional picture featuring Peter Capaldi as the Twelfth Doctor alongside Mackie as Bill and Matt Lucas as returning character Nardole (click to enlarge):
The new information comes ahead of a brand new 60-second Series 10 trailer, which will air tonight during half-time of tonight's live FA Cup quarter-final match between Chelsea and Manchester United on BBC One as well as being released online.
Doctor Who returns with Series 10 opener The Pilot on Saturday 15th April on BBC One.
[Source: BBC Doctor Who]