We are on the same Sept 3 cruise as "devonuk" above and I agree, it wouldn't surprise me to see these ports canceled. Our itinerary also includes Helsinki which I would think is vulnerable to cancellation as well. A Holland America cruise to the Baltic in May just recently changed their Helsinki and Tallinn port stops to stops in Sweden. Princess has recently changed the title of our cruise from "Baltic Heritage" to "Norway, Denmark, and Sweden"...... so that doesn't sound promising for our Finland, Poland and Estonia stops.