Yup, example.com is ranking for a few terms example2.com used to rank for. We do not have access to analytics for example.com, but my assumption is that those keywords are driving traffic as some are ranking on page 1.
The rankings have dropped very far. For keywords we were ranked on page 1, now have dropped to page 5. For some keywords we were ranked on page 2 have dropped to page 10+.
What odd is although head terms have had a bigger impact overall, there are a few head terms that have had a smaller drop then long tail terms.
Yes, surprisingly still ranking for the brand name but now example.com comes up first.