I read the Patch Log in the Everquest II directory for that day (unfortunately I didn't save it) and it seemed outside of LoN the only big changes were to the 2 following files:
eq2ui_mainhud_mail.xml
eq2ui_mainhud_zonereuse.xml
Removing these 2 files from the Custom UI directory will allow for use of these windows until an updated custom version can be made available.
Also, in order to update my EQ2i links for the Examine, Quest Journal, Quest Helper, & InfoCenter windows I simply opened those windows via Notepad and searched for EQ2i. Once I found the 1 line reference I just replaced the search string to read:
OnPress="URLString='
http://eq2.wikia.com/wiki/Special:Search?search='
Lastly, if you want to include the LoN content just read the Top Headline from the front page for a quick fix.