It does say "Main Feature Audio: Dolby TrueHD: English 5.1" but I can't find information on the cast or anything so it might just be copy/pasted from other BDs.
As someone who hasn’t yet seen it, but it’s on my list to watch, is the English dub that awesome? I generally prefer to watch anime with original audio and subs unless it’s a really solid dub job.
Afaik there's only the original Japanese dub. To be honest, I also prefer sub over dub, but I think having the option to listen in English would be super cool.