Just that really. I think open adoption will become much more common and adopters will become more like long term foster carers with ongoing contact with birth families facilitated wherever possible.
My suspicion is that one of the things preventing this now is that adoption is a cheap option for LA's compared to long term foster care.
Personally, I would be open to face to face contact but only on the condition that there were strict boundaries in place and whatever support was needed for all involved in the adoption triangle. This too would be costly in comparison with adoption as I know it. I'm aware things are different in different parts of the U.K.