Dannyboy2013, perhaps the restructure is not the worst case. If you pay off the loan in full with a new loan today, the 6 year countdown for it to be removed starts today. If you choose not to restructure and continue paying the old loan and succeed in clearing it in say two years time, the 6 year countdown for it to be removed from your ICB report starts in two years time. So instead of it on your report for six more years you'd have it on your report for eight more years.
The six year countdown starts from the point you clear the loan.
The bank won't be removing or hiding the record on the ICB database, they could add explanatory comments.