The newest issue of V Jump has provided a teaser of the upcoming Galaxy Mission (#9) for Dragon Ball Heroes. Here we get our first look at Mirai Gohan (future) in a Super Saiyan 3 state along with Mirai Trunks also as a Super Saiyan 3. During the game you will battle these two in the Hell stage but only if you beat the future and present stages. You must defeat them to break out of the Hell stage. More details soon.
Credit goes to Nostal for the scan.