Got a note today from Facebook for Pages: On April 26, we will be updating the size of the profile picture on all Pages. We are letting you know about this small change in advance so that you can update your profile picture on April 26. The new profile picture will be 160 x 160 pixels and will sit at 23 pixels from the left and 210 pixels from the top of the Page.
So the current Page Header on Facebook:

And my guess as to what the above message means for the future Page Header on Facebook:

So for all the naysayers out there, for many Pages this is irrelevant. For all of you who created really cool, interlocking Tetris-Style Page Headers, it’s time to get your Art Dept cranking on the next big change. Hopefully this isn’t you?