My current job contract (in an outsource software development company) explicitly says that I should not disclose "commercial secrets" while I'm employed and within a year after termination. I'm leaving the company in a week and cannot even use any references to the work done in my portfolio because it would inevitably make it apparent what customers this work was done for (which is the part of the said commercial secrets), and I'm not going to violate this agreement.
At the same time I wonder if I'm actually free to disclose this information (the references to the applications and thus list of customers) when this NDA period expires without consequences? Is it something my current employer can sue me for anyway or could it just harm my reputation as a reliable employee in the eyes of future (potential) employers?