It seems to me that, in general, any means of ctb is being restricted or withdrawn from availability. Here in the UK even physical methods such as jumping from a height proven to afford a fatal out come are being addressed. The Erskine Bridge in Scotland now has high anti jump fences installed on both sides for its entire length; whilst pro life volunteers regularly keep watch at Beachy Head cliffs in England.
Seems most unlikely to me that N will ever return to be available to us.