I have also booked civic i vtec prosmatec in black color from Honda Rawalpindi on 27th December 2012.
According to my knowledge
1.They are giving the date of march in delivery letter.
2.They have different production cycle like they have set the manufacturing day of each model as mine is set only one day productivity for the whole January month and for vti oriel, they have set three days manufacturing.
3.No, they will not skip the manufacturing of current model
4.I have asked this question from sales manager Honda,according to him 60 to 70 cars are manufactured in one day.