The question is, is the station so far behind, that it would delay the installation of track, power, and other systems?
Good point. I wonder if, if it becomes clear that the timeline for opening will not be met and everything else with the subway extension is ready for opening, if they would re-jig the construction schedule for Pioneer to move track work up in the timeline, and any 'non-operational station work' back? I mean like, if you have a choice between scheduling an escalator delivery and related work or scheduling track installation and related work, that the latter would be moved forward. If worse came to worse, hopefully the TTC could open the line but bypass Pioneer, with it looking much like the construction currently happening at Union.