I don't know if you read the story, but DTW and MSP are among the two most profitable hubs in the country.
"Profitable" is a poor term -- not much is profitable for NW
(or most other airlines, for that matter) these days. Both DTW
command among the top "hub premiums" for NW
, which basiclly means they bend over passengers (fare wise) who live in the DTW
suffered among the heaviest cuts by WN
post-9/11... they added daily nonstop service to PHX
in April and seasonal weekend service to MCO
earlier this year. Year-round weekend service to LAS
begins this fall.
I'd look for WN
to restore flights to MDW
and perhaps increase service to PHX
over the next several years -- maybe we'll see nonstop service to BWI
. But a massive expansion? Highly, highly doubtful.