Later this year I may be off on Fridays which will allow me to run either an evening game on Thursday or a day game on Fridays. So, I have started work on a megadungeon for Viking Saga rules. The ruins of an ancient civilization located in the frozen north. The Hoarfrost Halls will be developed over the next few weeks (though I won't share too much online so potential players aren't spoiled).
Here is a rough sketch of the levels as I currently plan them (subject to my ever changing whimsy).