Outlook 15.27 Ctrl-A and Ctrl-E shortcuts no longer working
I tested this out and can confirm that this did stop working.  However, there is a quick and easy fix: you can set your keyboard command in Customize Keyboard directly in Word.

Under the Tools Menu in Word, select Customize Keyboard (it's at the very bottom)



Next, in the Categories tab, select "All Commands."  Then in the Commands search for "endofline".  You can then assign Ctrl A



Make sure you are saving to Normal.dot (the default template) and select "OK."  You should have your keyboard shortcut restored.