A station is definitely needed in Keilor East. A lot of conversation on here has been about poor walk ability and catchment. Just like most of Melbourne's older suburbs and even new suburbs, there is a core 'activity centre' where access to PT is great, the further you get away from the centre, walkability falls right away. The last mile then moves to the leper of PT in Melbourne... Busses. Keilor East/Airport West is no different.
Unfortunately there is no way to have a direct station link to the areas two main activity centres, Westfield Airport West and Milleara Road. All is not lost. As Peter has explained a Keilor East Station located South of Airport Drive (Between Etzel & Harrington Road) and a reform of the local bus route will give the current black hole some of the best PT in Melbourne. Throw in a park and ride with a few hundred car spaces for good measure. The suburbs of Keilor Park, Keilor, Airport West and East Keilor now have a train service every 10 minutes only a short bus ride away, a catchment north of 50,000 people. The benefits far out-way the additional 90 seconds the train will take to reach the airport.
I don't see there being great need for a Sunshine North Station, the area is a stones throw from Ginfier and Albion Stations. Local bus routes would already be doing the work. Very little actual ridership, more just shifting commuters from current stations.
If we wanted to get real serious about improve PT and connecting suburbs to employment the government could reroute the Line 59 Tram via Moore with a new super stop at Rodd Street for far better access to Westfield. Continue down Moore Road to the railway reserve and run parallel to Keilor East Station. Airport West, Niddrie, Essendon North and Essendon Fields are now connected to heavy rail. The area is linked to Sunshine NEIC and rail services through this hub can access the area with a change of service. This also connects the line 59 to the airport.
More broadly, Line 57 Tram needs to be extended firstly the 1.5Km to the Avondale Heights shopping area. Then continue the 5Km down Milleara Road connecting all of the areas retail, employment and schools together. All of which are high trip generators for local short trips. Highpoint is also a major employer for the area. If we want to go further you could turn the tram right down Woorite Place to collect the hundreds of PEGS students, cross the freeway at Moorna Drive and connect into a new Keilor East Station. Once again, half a dozen suburbs are now connected to heavy rail. A 10 - 15 minute tram ride then change to a 20 minute train trip to the city.
Now thats enough foam from me.