But its expansion into mortgages could lead to increased scrutiny from the regulator. Notably, Metlife ( MET) is exiting the business of mortgage origination and servicing precisely to reduce oversight by the Fed after its plans to return capital were rejected earlier this year. AIG's return to mortgages might be a signal that it is ready to embrace innovation once more. The company recently unveiled its new "Brand promise" called "Bring on Tomorrow". But its expansion into mortgages feels dangerously close to yesterday. --Written by Shanthi Bharatwaj in New York >To contact the writer of this article, click here: Shanthi Bharatwaj. >To follow the writer on Twitter, go to http://twitter.com/shavenk. >To submit a news tip, send an email to: email@example.com.