I would go with 2 phased approach, the first terminating at the Rosedale Center Transit Center then a second phase continuing to the Maplewood Mall tying into the Rush Line Station there.Where would it go? To Roseville? It might be better to simply increase the frequency of the current bus 32 line and use it as a connector between the various BRT lines and Blue Line Ext. Northside has the C Line and 14 and 9 going E/W, the 32 and 30 buses are less reliable.I'm a little surprised there hasn't been a bigger push for the Lowry line based on equity and investing in the Northside. Moving forward North MPLS is going to have great connections going N/S yet limited E/W at least with LRT/BRT/aBRT.
I would also like to think that somehow state/county/city leaders are able to come up with a way to fund all these lines well before 2040, that might be a pipe dream though
I don't know the Northside bus routes well enough comment on those