The Obama administration is expected to roll out a more aggressive agency refinance program soon as part of a new economic stimulus package with Wall Street analysts predicting the plan will likely focus on pricing changes at Fannie Mae and Freddie Mac or an expansion of the Home Affordable Refinance Program.A recent report by Amherst Securities Group notes that a massive government refinance program “is unlikely, as it could not be implemented without subjecting the GSEs (and implicitly the taxpayer) to an increased level of risk.”