Not sure if anyone caught this but it looks like a company are doing an add-on scope which comes with voice clips by Frank Welker - apparently there are 11 voice clips for the English version and 4 English voice clips and 6 Chinese clips for the Chinese version.

They also include a panel to cover up a part of MP-36's back and have a purple LED in this rather than a red one, but the big thing are those voice clips.