Assuming Holly is not a part of the upcoming series - if Holly were to reappear in a subsequent series of Red Dwarf, who should play him/her? Should Norman/Hattie resume the role? or should someone new take over? Personally I would have Norman/Hattie hand over the 'Holly torch' to a new actor. I'd have Holly turned on again and Queeg turn up to contest him/her - Holly could then be forced to update and reboot giving way to a new 'version' of Holly. I think Adam Buxton would play Holly well.