Super Dragon Ball Heroes anime 1st teaser trailer...
[video=youtube]https://www.youtube.com/watch?v=k5o3JCBSRZo[/video]
Yes, it is indeed based on the arcade card game, which is an offshoot or sorts from Xenoverse.
This is the next Dragon Ball project they were talking about, and it isn't clear if it is part of the main continuity or not.
The Goku Blue we see here is the one from DBS, but it's not clear if this happens after the conclusion and continues the story, or if he is pulled from another point in the series.
It seems like it is based on an arc in the DBH manga.
All and all, it probably won't be canon if another main line Dragon Ball series is made, but it could be interesting regardless just for the fact that it's probably going to be a shitton of DB fanservice crammed into one show.
If this becomes canon then it will mean that all DB is now canon, including GT, and takes place across a huge multiverse.