Seems it would have been easier to just do this profile pic update at the same time as the other Forced items a few weeks back.
Got this in an email today:
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.
Get ‘er done.