In Dragon Ball Super series 

in episode 123 its gonna release the new form of vegeta known as form beyond super saiyan blue.

Some thing like this

Source

In preview of of dragon ball super episode 123 it is shown like this

Description of newform:

• Here you can see the aura of vegeta is dark bluish unlike goku which is light blue. 
• The sparks or those white god bubbles are very large in number.
• The aura is wider than normal.
• End of aura is like pure  Violet  color(very dark blue).
• Hairs are darker than normal super saiyan blue.
• This form was called as true god form of saiyans.

Clear Difference

Lets hope we get to see some bad ass transformation with great power and hope that goku achieves full Ultra Instinct (the Limitbreaker form).

I hope you guys enjoyed it stay tuned.