The second reading of the Bill, having cross party support, took place on February 3rd without opposition and has now been committed to a Public Bill Committee which is due to take place on 22nd February. The Public Bill Committee will scrutinise the Bill line by line.
You can track the progress of the Bill here:
http://services.parliament.uk/bills/2016-17/guardianshipmissingpersons.html
You can read a copy of the Bill here:
https://www.publications.parliament.uk/pa/bills/cbill/2016-2017/0120/cbill_2016-20170120_en_1.htm