Well, unfortunately it seems Bomberman won't make it into Smash. In a recent Nintendo Direct, they announced the final two characters being added to the roster which includes the winner of the Smash Ballot.
I won't ruin it here but I'm sure most people know by now. The winner was ranked #1 in Europe and in the top 5 in the US according to the direct. Take a look at the direct if you wanna see. It shows them around the end.
https://www.youtube.com/watch?v=j1JERhUoQoU