Is an extension of PATH from Newark Penn Station to Newark Airport ever seriously discussed? Or has it permanently been put to rest? Sorry if it has been discussed to death—I don't follow PATH closely. JS
On the old forum (not saved, unfortunately), there was quite a bit of talk about PATH being extended to the Northeast Corridor EWR monorail station, most likely on the other side of said station in the currently disused track space of Waverly Yard.
PATH tracks currently extend to South Street in Newark, right across the street from the abandoned PRR South Street Station, but those are only used as storage tracks at present.
Why only to Waverly? Probably having to do with space constraints presented by the monorail, but more likely due to NJ Transit's competing "Newark Rail Link", aka the project in the works to extend the Newark City Subway LRT line into EWR (and possibly southwards into Elizabeth on abandoned portions of the former CNJ main line).