No, the deduction could only have been claimed by the latest by the end of FY 2016-17, i.e. by 31st March 2017. Now you cannot claim the deduction in a different assessment year for an earlier assessment year. This means that a deduction under section 80EE w.r.t. AY 2017-18 FY 2016-17 cannot be claimed in any later assessment year or financial year.