The short answer is yes!
Since both Elements and Market are part of the Envato network, authors are permitted to upload the same items currently sold exclusively on Market, to Elements, without needing to change their exclusivity status.
This means you can continue to earn the same exclusive rates you always have on your Market sales, while at the same time reaching a whole new customer base by offering the same content on Elements.
With the exception of some Graphics items that can be uploaded independently from Market, all other items exist on Market. This means that your exclusivity status on Market will determine the exclusivity status of your items on Elements (and any other Envato platform). Any Graphics items that have been uploaded to Elements that do not exist on Market are non-exclusive.