Plenty of practice and anticipation, but not much evidence of "real-time" ILS-PRMs or LDA-PRMs.
What are the airports in the US that you think will introduce SOIAs? I know of SFO(KSFO) how about KLAX,KSEA,KEWR,KMCO?
Cost of implementation will obviously be a major factor to ATC units and airlines in these days of tightening budgets.