ITC Taken ... But GSTR-1 late submission by Input Supplier

As per section 16(4) of cgst act ITC of a fy can be availed till the due date of filing of return for the month of September of the succeeding month or date of filing of annual return for the relevant year which ever is earlier.
so in your case if annual return has not been filed before the due date of filing of return for the month of September 2019, then ITC will be available to you..