Originally Posted by
Digifiend
Ultimate Jessica wasn't really a dupe. She has Jessica Drew's civilian name, Natasha Romanoff's codename, and a combination of Ben Reilly and Laura Kinney's origins, so she's a composite character. She just needed to change her surname (the first name is fine, there's already two big name Jessicas, Drew and Jones, and it's no different to Gwen Stacy and Gwen Poole). I think Bendis wanted to bring her over, but editorial said no due to the existence of Spider-Gwen, Silk, and 616 Jessica Drew.