Edit: I shouldn't say the "entire" Act as some aspects might be untouched but the major relevant portion of regions required to gain approval before screwing with the voting abilities of the people there is effectively dead.
I suppose the good that can come out of this is the SCOTUS will have to set precedent on individual voting issues as being discriminatory or not. It just takes a long time for that to happen. In the meantime, many will be disenfranchised.
I think what the republicans aren't fully realizing is that, at least with voter ID laws, friendly fire could take as big a toll on voter turn-out as those being selectively discouraged from voting.