Simonsig will run in the Neptune Investment Management Novices' Hurdle at the Cheltenham Festival.
Winner of two of his three starts for Henderson and second to Fingal Bay at Sandown, the six-year-old was last seen cruising to victory in the Morebattle Hurdle at Kelso.
He holds an engagement in the two-mile William Hill Supreme Novices' Hurdle, but will instead tackle the two-mile-five-furlong contest on March 14.
Henderson said: "He's going to go two-five, Barry (Geraghty) schooled him the other day and he's still a bit of a baby, so it might suit him better."
Sunday Indo Living