I think that Delta's combine presence in JFK, LGA, and EWR (our NY guys cover all three airports) trumps CALs EWR base. CAL pulled out of JFK with their tail between the legs leaving the entire NY area under the firm control of the Red Widget. The Blue pithy sayings on those foreign jets notwithstanding.

As for the DTW expansion team, you are stuck with the Lions, not unlike the DC 9s. But trade rumors abound. I have already dripped to the family that cold wx can be a good thing and that housing prices in DTW are REALLY CHEAP!