After migrating a few sites today, it looks like the paths for a WordPress site running the Word Fence plugin don't update.
These are within the .htaccess file and wordfence-waf.php.
I would suggest that all paths matching the old cPanel username in .htaccess should be altered automatically (not just for Wordpress) but these two files specifically for such sites need to be checked because the volume of sites running WP and possibly this plugin mean migrations won't be smooth and very time consuming for thousands of sites.