I know the Dodge Chance stat was still bugged (reporting 0) the last time I tried stacking Blur, Evasion, and Hist Bark. Until they fix that, the only way to check is very time consuming and can't truly be accurate, but if they do, it would be with diminishing return.
http://forums.elderscrollsonline.com/en/discussion/194936/dont-use-hist-bark
http://forums.elderscrollsonline.com/en/discussion/157421/hist-bark-and-major-evasion
Also, from Patch Notes v2.1.4So, they definitely will no longer stack as Major/Minor Buffs will not double up.
- Hist Bark: The bonus for this item set now grants the Major Evasion buff.