Ive been reading a lot of discussion related to the addition for competitive leagues and to bring Battlefield up to the Level of other great eSport titles such as CS GO LoL & CoD
the reason why games like CoD suck sooooo bad is what makes them great game choices for eSports. if you take away all the children and are purely left with players who's ambition it is to be the best games like CoD & CS GO become a completely different beast. simplistic 5v5 match scenarios where the best players match up and use a variety of strategies to beat their opponent. the maps are small, fast moving and is fantastic as a spectator sport.
now what makes Battlefield soooo fantastic is its open world war on a massive scale, now this is the reason why it will not work as an eSport. What makes battlefield stand out from the rest is its conquest & operations game mode. Unfortunately the logistics behind creating enough 20 man teams that can all play together at the same time each day is just horrific to think about, for me a Battlefield eSports would have to be conquest on a massive scale for it to stand out amongst the crows as a 5v5 TDM would just be laughable when you got games like CoD and CS GO out there.
For those reasons, i just do not see major eSports brands backing Battlefield due to the complexity behind creating enough teams that can compete against each other