the story seems like a extended version of battle of gods leh....
Beerus awaken, old supreme kai sense it, then Beerus will go to earth look for Goku, eat Bulma's ice cream and snacks....
all so familiar leh....
Um it is ah.
Don't you know God Vs God and Resurrection of F occured during those lost years?
And movie and OVA versions are normally condensed versions of the original animation. In this case they are 'reverse engineering' the movie into animated versions, with the ability to expand the 2-hour movie plot into more than 10 episodes telling the same story, including addition of characters that didn't get to appear in the movies at all, like the fat-looking Bils character.
Heck, I wouldn't be surprised if they included origin stories of Space Patrolman Jaco into the animation in order to not let viewers who never read the comics to understand how this sudden random character came about (I am pretty sure some moviegoers didn't know who Jaco was when he appeared in the movie)
So yeah, next episode, Bulma's birthday! So probably Bils is gonna target Earth either that episode or after that, and crash the party.