You may not have seen this mosaic of images from the New Horizons probe at
close encounter, showing the GRS and region f. it.  (I have crudely
assembled the raw images from the NH web site -- no doubt the team will
release a better version in due course.)  It was targeted to observe the SEB
'rift' activity there, which of course had stopped; but the surrounding
cloud textures are still interesting.  Note the extraordinary *lack* of
cloud texture in the southern two-thirds of the SEB, and also in the shaded
central part of the EZ.  The southern 2/3 of the EB is also very bland in
amateur colour and near-IR images, and is clearly 'fading' (becoming
lighter), but this change in cloud texture preceded the fading. 
best wishes,

John H. Rogers,Ph.D.
Jupiter Section Director,
[British Astronomical Association.]