TheMainTrain has did a previous version of the route; they should be doing it again soon. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-WfRDD8dJqyI.html
Same explanation which I gave for NR1. Our LTA Datamall still states that service NR2 continues to exist. Until it updates till N2, it will be shown as NR2 in the infobar.