Borders, Citizenship and Immigration Bill [HL]

Can the Minister give any assurance on limitations to the Government’s thoughts about how much they might, under odd circumstances, wish to extend this period? After all, the Government have signed, but not yet ratified, the convention on naturalisation, which refers to a maximum of 10 years for qualification. Do the Government wish to retain the freedom to extend way beyond 10 years or are there no limitations on the variability that one might introduce under Clause 39(2)?