Timetable for contact?

Hiya my 3 year old daughter has seen her father twice since september for 2 hours each time supervised by her granddad. We are going though the courts and the judge has said that he will be granting her father unsupervised access sooner rather then later. There is more to it but I won't go into that. However he also wants to introduced his other child (who is 1), heavily pregnant girlfriend and extended family who my daughter has no idea who they are and hasn't seen some of them since she was 2 an half. I think this will be confussing and unsettling for her since her dad rarly turned up to the supervised contacts. Any ideas on a suitable realistic timetable of introducing them. Also there is alot of hate against me from his family do i have the right to say any of them especially the extended family her anuts uncles can not see her. I do have a rendency order in my favour. Any help would be much appeciated. Thanks