This is not correct. Your pre-E Wizard can take any Wizard power (s)he likes, including the ones in HoS with the Nethermancy or Necromancy keywords (which will likely be all of them). At worst, those powers will have a keyword that your Wizard will ignore. They will otherwise be fully compatible with PHB Wizards.
But clearly, since HoS doesn't have a build for the PHB1 fighter, your argument is invalid.