A draw is still a big possibility, it's just that if either one does win I think it will only be a narrow win.
Sevilla or Cadiz will be happy with any type of win, whether it is a narrow one or not, the both of them desperately need points if they do not want to be relegated. The two clubs have had almost the same results this season in the La Liga, though Sevilla have lost more games than Cadiz this season, but i don't expect them to lose this one, i think it will be a draw, or maybe because Sevilla now has a new coach, they may be able to play well and get the victory, but nobody should be staking their money on that.