Snälltåget will run a test run Malmö - Trondheim direct and back on September 5-6!
I believe this will be the very first passenger train to run across the border on electricity? Historic event!
I will try to be on this train as I live a few stops before the border on the Swedish side, if I can make the planning work.
Only source I found yet is their Facebook post: https://www.facebook.com/share/p/1BvjsgsMkQ