There's nothing different about La Liga, except for the rivalry between Barcelona and Real Madrid. I admit the rivalry between these two rivals is fierce, but none of the other teams are capable of putting pressure on the top of the table after Atletico Madrid's poor performances in recent seasons.
For next season, I just hope Atletico can perform better after the many changes they've made since last season. If they do, then La Liga will likely be much more intense and exciting with three teams competing.
The top three teams will likely still be Real Madrid, Barcelona, and Atletico Madrid next season because the other teams in La Liga still don't have the depth of their squads that those three teams mentioned. However, on the other hand, I also hope Atletico Madrid can create a different kind of competition next season so that they can pose a serious obstacle to Barcelona and Real Madrid in the race for the La Liga title next season. Furthermore, I'm eager to see how Real Madrid will approach the season with their new coach next season, as Xabi still needs some different techniques to make Real Madrid a better team.
Yes I agree with you Barcelona will still lead the League and Real Madrid will be the second runner and probably and Atletico Madrid will be the third though that is my prediction on the forthcoming La Liga season.
But next season will be a tough tournament for Barcelona because all teams are getting reform to face tough team.