Eventually, after the service to Hackensack starts, they should really look into extending the rail line to Edgewater with a transfer station at 91st street along the future HBLR, and a potential stairway/elevator to Edgewater from Cliffside Park. That whole area in general needs better public transport due to the abysmal traffic.
Also, a station along the Maywood and Rochelle Park border (I think?) near the former depot and next to Saddle Brook park should also be constructed. I know I've heard somewhere that these towns did not really like the new rail service, but hey. It's not like trains don't run there anymore like in Tenafly.
Any chance that the Lodi branch can eventually be used for something related to this? I do know a new wye would need to be built at the main line though.
Train systems ridden (excl. airport trains): Amtrak, CTA Loop, D.C. Metro, JR (Central, East, West), Keisei, M&Erie, NJ Transit (NLR & HBLR), NYC Subway, Osaka City Subway, PATH, Shizutetsu, TDR Monorail, Tokyo Metro, TTC Metro/Streetcar