VS085/6 MAN-LAS

Hi
I wondered if anyone had any info regarding the new Manchester to Las Vegas route.
I have prebooked my seats using the VH website which shows a 747-400 conf 1, I have chosen 76A&C PE in the bubble. Could the aircraft config change nearer the time? I keep logging in every week or so just to check.
Does anyone know which aircraft might be being used or do I need to be patient.
I wondered if anyone had any info regarding the new Manchester to Las Vegas route.
I have prebooked my seats using the VH website which shows a 747-400 conf 1, I have chosen 76A&C PE in the bubble. Could the aircraft config change nearer the time? I keep logging in every week or so just to check.
Does anyone know which aircraft might be being used or do I need to be patient.