You are not going to see high speed switches around Summit. There is no need for them. It is such an important stop that, practically no train will ever skip it. It the train is stopping at or departing Summit the benefit of the high speed switch is non-existent.
I also do not see moving the entire yard west of the station as likely -- too much money for too little benefit. Third track between Summit and Millburn will be nice, but good luck with the NIMBYs. After the completion of the pocket track (in year 2045 ), the next thing that can be reasonably accomplished is to restore the third track through Millburn station, so that a stopped train at Millburn does not delay the expresses. There used to be a third track there, the bridge over Lackawanna Pl is still there and the catenary structures are still there, you pretty much need to just cut back the platform and install the track and the wires. Unfortunately that amount of work probably triggers ADA for the station and both platforms will need to become high level plus elevators.
I also do not see moving the entire yard west of the station as likely -- too much money for too little benefit. Third track between Summit and Millburn will be nice, but good luck with the NIMBYs. After the completion of the pocket track (in year 2045 ), the next thing that can be reasonably accomplished is to restore the third track through Millburn station, so that a stopped train at Millburn does not delay the expresses. There used to be a third track there, the bridge over Lackawanna Pl is still there and the catenary structures are still there, you pretty much need to just cut back the platform and install the track and the wires. Unfortunately that amount of work probably triggers ADA for the station and both platforms will need to become high level plus elevators.