In reply to garrett85:
You can ski in from the Lucknerhaus near Kals on the southern (East Tirol) side, over the Adlersruhe hut, down the the Hoffmannskees glacier on the north side, then traverse to the route up to the bivi hut below the north face. It should be possible to do this in a day, or you could stay the night in the Studl hut (should be fully open now).
I went in this way in November 2011, a bit of a slog, but aids acclimatisation...
Bear in mind you will almost certainly require skis unless it hasn't snowed for a long time.
You may also be able to access the Franz Josefs Haus via the village of Heligenblut or the ski area above it.
Which route have you got in mind?