I certainly hope that dragons will fly and swoop in to attack rather than attack on land like giant ogres something only landing for the kill when they think you've been weakened suitably.
However given that single combat with dragons is to be a regular event in the game this might be a disadvantage to purely melee characters since they'd find it hard to hit a flying dragon! Perhaps playing dead is a way to lure them to land?
OR maybe there'll be different types of dragons and the flying ones would be more like set piece boss battles with ways to ground them for melee characters using the environment
what do others think?