I doubt anyone at EA or Bioware is intimidated for The Witcher 3. It might not be crazy to think that some people at Bioware feel a bit under pressure after the whole deal with DA2.
If anything, Bioware will be happy about the popularity of the Witcher series. Am I the only one that remembers that not that long ago people were claiming that CRPGs were dead if not the whole PC gaming market?
Gaming isn't a zero sum market, its entirely likely that plenty of gamers will buy both the Witcher 3 and DA: I. Its not like theres a huge number of CRPGs to choose from each year.