I'm not a huge fan of this game nor played it a lot. I happen to see this game as often as whenever I check some stuff with my SocMed accounts though (a lot of my friends became a streamer of this game  ). And so, with no doubts, this game's popularity could reach somewhat close to Dota2, and as for betting? Not really sure though, but if I were to guess, then sure it can, it is just that this game is still new (atl east to me) compared to Dota2  .