From a Lizardmen perspective, there is still hope in regard to HE ASF and re-rolls. HE used to have Speed of Asuryan that allowed great weapon units (Swordmasters and White Lions) to have ASF. However, Speed of Asuryan is no longer an HE special rule. They have vanilla ASF which means GW weilding units will strike in initiative order with no rerolls (all other units get rerolls though). However, that is a minor hope as the Martial Prowess rule lets them all attack in three ranks, regardelss of weapon. Until the book is released we won't know the true state of HE GW units and their damage potential.
This information was gleaned for the iBook sample that Games Workshop has realeased to the iBook Store.