The lastest V-Jump reveals Android 13 and Tapion will join Dragon Ball Xenoverse 2 as playable characters in upcoming fifth DLC. There are another two characters besides Buu (Gohan Absorbed) and Dabura, which we'll see in the new paid content. V-Jump has also shown new costumes from Universe 2 and Universe 11, which will also be part of the new DLC. The release of DLC 5 is expected this fall.
You can find more information about Dragon Ball Xenoverse 2 in our encyclopedia.