That is a good question. After test completion, all but one box should turn green on the new tracker. If you are a paper applicant, then ECAS status should be "Decision Made" before you can expect the oath ceremony dates.
In our case, Decision made was on 6th December and I am eagerly waiting for my oath ceremony dates as we have to travel to India. The official website states that the oath ceremony is usually within 3 months of your test date and that the email to invite you for the ceremony is sent 2 weeks before. Its really a guessing game - with year end and holidays, plus the Afghanistan situation, dates are all but predictable.