At this point Sevilla is a sure target towards LaLiga 2 because it's clear that current team have no desire to actually play football and save this club for a real disaster that is relegation. It will also be the first time in club history when they will face this situation and the fact that they are in debt over 800 mil $ makes me thing they do want to go to LaLiga 2 and re-build a fresh team there under a new project. 
It doesn't look like Sevilla has any hope of surviving in La Liga and they are now increasingly miserable because they sit in a position close to relegation. Several years ago they were a strong team in La Liga but for some reason they fell so deeply recently that they were unable to compete with even weak teams. Sevilla seemed to be running out of time and the previous defeat against Athletic Bilbao also hit them hard.