They'll be going up. Right now the interest rate spread is about 1.25% (the difference in the rate that banks borrow and lend)
The fed is going to be forced to raise interest rates. This is going to casue the spread to tighten. The only thing banks can do is borrow the rate at which they are lending.
The side effect of rising interest rates is that it should help to strengthen the US dollar. To anyone that thinks that rates will stay here, or go down, you are wrong and not thinking straight. What is the point of borrowing money at a lower rate if the goods we buy from overseas cost more?
regardless of inflation rates, and what the fed does in the future, be aware that in bear markets, inflation rates can get up to 7%. And this bear market could have legs (10-20 years). If it does what has happened in the past (bear markets last as long as the previous bull), you are looking at a 17 year bear market. That means stocks will trade sideways (not go up or down).