I think it's safe to say that we can talk all day about what the future might bring, but the only thing that is safe to say is that the current numbers don't look THAT well, especially when comparing to the competition.
Now, this terrible summer 2014 in LH's core market might bring their July/August numbers up quite a bit. I wouldn't be surprised if Q3 2014 numbers for LH will be - quite a bit actually - better than 2013 due to this. Lots of last-minute bookings in higher booking classes, less empty seats especially on flights to the South. Obviously not just for LH, but given the bad weather was mostly focused on DACH-region, LH will profit from it the most.