Even though Real Madrid is still the best in Laliga, so I'm sure that little by little Barcelona will again become the toughest competitor for Real Madrid. It was only a matter of time before Barcelona finally came out of bad financial trouble.
If you look at the La Liga table in the last season, Barcelona finished in 2nd place. It means Barcelona is still the toughest competitor in La Liga. No doubt that Barcelona is always one of the strongest teams in La Liga, Real Madrid cannot underestimate them.