Agreed, I think this system is pretty well nailed on now and with even colder air tucking in behind it could be one of those rare events when rain turns to snow or stays as snow right through.
that would make a change from the default setting of a bit of snow that can’t wait to turn slushy as the mandatory warm sector moves in.
as for who sees the most snow, very much up for grabs but I would imagine the usual mountain areas, North Wales, Cumbria etc should get a few hours of heavy snow as the front passes through but hopefully everyone will join in the action.