I have continued to ignore the ticket.  What could happen?
You will automatically be convicted of the charge.  This is known as a 'default conviction'.  The default conviction is equivalent to a guilty finding.
What happens if I plead guilty to a violation that results in 5 or more points?
If you already have 3 or more alcohol-related convictions on your entire driving record, a plea of guilty to a violation that results in 5 or more points may result in the revocation of your license under Part 132 of the Commissioner's Regulations.  You may want to consult an attorney before entering your plea.