I still reckon it will be LH/ BMI to MUC/ DUS first to appear though
MUC, OK. DUS, errr.. I'm not sure even LH has worked out what it's doing with DUS, and it's certainly not a long-haul hub except for a few flights to the US East.
I've been using ZRH a lot more than FRA recently, so it would potentially pip FRA in a "which hub do you want?" race. In terms of short/mid/long haul options, it's better than MUC. And LX do some jolly reasonable intra-European fares too.
Wherever it is, please can we have flights that line up with the flight banks, not drop into the gaps between them? BRU consists either of 35 minute sprints down escalators, along travellators and up escalators again; 4 hour stopovers, or 10 hour stop overs (on Royal Wedding day) due to cocked up 35 minute connections.