Coffin,
Depends on how many positions they have. That depends on how many of the 744's are staying on. If all the new aircraft are replacements then they will only have to fill positions due to retirement/leavers. From what a previous poster has said, that has yet to be finalised.
Given that most LH operations operate at approx 8/9 crews per aircraft depending on the percentage of heavy crew operations the numbers could vary from bug*er all to a reasonable number.
Sadly the batteries in my crystal ball have run down so I'll be waiting to see the same as everyone else.
Those of us at home on hoovering and shopping duties do have the advantage of being instantly available even if we have started to forget what all the buttons and things do.
Good luck anyway.