Several Sunderland vehicles have gained a new destination display, more commonly associated with the 22071-81 batch.
22675 is one of these. Not sure how long she's had it for, so this may not be noteworthy at all... Also looks as if she's had an internal refurb too, which does suggest the blind is fairly recent.

Edit: Photos suggest it's not-so-recent after all..! Still noteworthy in the sense older MANs are receiving such treatment - even in 2013!