On June 25th the Spanish government had published at the BOE the Nationality law for Sephardic (law number 12/2015). That law permits to obtain the Spanish nationality without any need to renounce the existing one, for the ones who can prove they are descendants of the Jewish community expelled from Spain in 1492 and maintains a strong links to Spain. Regarding that law, all application that have been applied regarding the actual Carta de Naturaleza law and haven’t been resolved yet, can be continued based on the new legislation procedure. The law will come into effect on October 1th. Those interested have a three-year period to apply for citizenship.
On the June 11th the Spanish government approved the law of Spanish Nationality for descendants of Sephardic Jews expelled from Spain in 1492
On the June 11th the Spanish government approved the law of Spanish Nationality for descendants of Sephardic Jews expelled from Spain in 1492. That law permits to obtain the Spanish nationality, without giving up the current citizenship or be required to move to Spain.
Applicants will have to prove having Sephardic origins by different kinds of personal documents as for presenting certificates from the Federation of the Jewish Communities in Spain, rabbis or Jewish community leaders. Family names that can be proved being originally of Spanish Sephardic or knowledge in Ladino o Haketia are also part of the evidence that will be considered globally.
NY Times about Citizenship for Sephardic Jews, Interview with Rosa Maria Verger Sans

El periódico americano NY TIMES ha realizado un reportaje especial sobre la aprobación de la Ley de Nacionalidad a los Sefardíes, entrevistando entre otros a la abogada Rosa Maria Verger Sans.
NY Times: Spain Approves Citizenship Path for Sephardic Jews