It seems the NA release of the Tales of the Abyss anime by Bandai Entertainment will be having the original Japanese audio, coupled only by English subs.
The NA release of the first volume of the anime, due to come out this June 7, 2011, will be featuring no English dubs, and will instead be just the original Japanese audio dub with optional English subs. This first volume will contain the anime's first seven episodes, as well as a textless version of the first version of the opening movie.
Bandai Entertainment has opened up an official subpage for the anime. The regular and limited edition versions of the 1st volume are now available in their store. Amazon.com also lists the two products: Regular Edition | Limited Edition
Lastly, Bandai Entertainment has also released a short trailer for the anime:
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