Unfortunately, I think that a lot of the tax deductions are going to be either reduced or eliminated.
The most likely, in my opinion, are the mortgage tax deductions. They will likely be reduced.
The deductions for those with lower incomes may vary well be reduced. It certainly doesn't seem right to do this but the government likes to spend money and will get it somewhere. The child tax credit and earned income credit could be limited or eliminated.
And look for the payroll tax reduction(2% payroll Social Security reduction) to expire.