Do current versions of Icegram Express use the old Email Subscribers WPDB tables

I’m curious if current versions of Icegram Express (which creates a series of tables in the WP DB prefixed with wp_ig*) ever uses any of the tables that were created with old versions of Email Subscribers (tables that were prefixed with wp_es*)

I’ve installed Icegram Express on a clean WP installation and I don’t see any of those older tables, but I’m wondering if they’ll show up eventually.

Thanks!