I super wish that this would happen. There are just vast blocks of LIC that seem to be destitute and empty, and then there will be Dutch Kills or M Wells Steakhouse sitting there like a literal diamond in the rough. To get from Astoria to Brooklyn, you have to take a train through Manhattan or make three two transfers and ride the New York Times Awards “Sorriest Little Railroad” line, the G.
I would love for Astoria and LIC to be connected to Greenpoint, Williamsburg, etc. by a route other than bike (which is by far the easiest way to get from where I live to where you live, theoretical Tumblr reader.
The G line is often bashed by what I can only imagine are people who don’t ride the damn thing quite often. The somewhat infrequent service is well-matched with the ridership numbers and, shockingly, the train is almost always on time.
(Yes. Subways do run on a schedule. Some lines moreso than others)
Now is a streetcar line the answer - probably no.
If you ask me a better option would be to build a new northern terminus on the Queens Blvd line in the already-built but unused spur around 63dr Rego Park. Extend the G line to there and increase service. Now much of Astoria has direct access to Brooklyn. To avoid interfering with the F line which shares trackage with the G south of Hoyt-Schermerhorn - Some trains can terminate at Bedford-Nostrand. South of there service is largely duplicative anyway, with only 3 stations having G-only service and each with another station within 1/2 mile.
The construction of the new northern terminal would should not exceed the construction costs of a streetcar line - personnel costs would be lower than a streetcar line since no new stations will have to be maintained and we’re only talking about adding a few subway crews, and only a little extra rolling stock would be required which should be cheaper or comparable to the costs of acquiring new light rail stock. Furthermore, since we’re talking about subway rolling stock here costs will be much less because a new facility won’t have to be built to maintain the trains.
But what do I know.