It appears that Darren Young, Derek Bateman and Percy Watson have all been officially added to the Smackdown roster page. It's unclear as to whether the WWE has big plans involving the three Superstars or not but you should be able to expect to see the three Superstars on Television more often now. To see the current rosters for RAW and Smackdown, visit the following links:

https://www.wwe.com/shows/raw

https://www.wwe.com/shows/smackdown