What is Goku's red aura form in the new Dragon Ball Super opening?


What is Goku's red aura form in the new Dragon Ball Super opening? Is it
regular Kaioken? Is it Super Saiyan God Super Saiyan with Kaioken? Is it his
Super Saiyan God form? Is it something new? You can see the opening here:

<https://www.youtube.com/watch?v=FN57gmQlmLU>

(The question of the topic is what form it is, the other questions are
explanatory.)

[![Goku red aura
form](https://i.stack.imgur.com/H5PpT.jpg)](https://i.stack.imgur.com/H5PpT.jpg)

Update: 03/08/2017 . Super Saiyan Blue transformation was seen first in
merchandising toys. Some people is saying the image behind this chocolate Goku
merchandising could be Goku's new form and related to this red aura form we
see in the opening.

[![enter image description
here](https://i.stack.imgur.com/30Frg.jpg)](https://i.stack.imgur.com/30Frg.jpg)

And recently a tweet was made by a Dragon Ball Super writer saying he's
expecting a new form

[![enter image description
here](https://i.stack.imgur.com/pjrjy.jpg)](https://i.stack.imgur.com/pjrjy.jpg)




We won't actually know until we see the episode that Goku performs it but...
he seems to be in his base form but with red aura instead of his original
white aura!! But how is this form above Super Saiyan Blue? I am kinda curious
and excited. And BTW I came here for an answer but I didn't find one lol. But
it doesn't seem to be Kaioken or Super Saiyan God.

