The deputy leader of the leftwing separatist ERC party, whose chief is now in jail, is now in Switzerland, according to Spanish media.
Prosecutors want the main Catalan politicians to stand trial before the end of the year, but it is unclear whether Spain's judiciary will be able to force the extradition of those who have fled the country.
In a statement released by her party, Rovira said she felt her "freedom of expression was being censored by the courts which intimidate and shamelessly apply political criteria".
Spain's top prosecutor had demanded that all be jailed since there was a high risk of them repeating the crimes they are accused of.
The wealthy northeastern region, where pro-independence politicians have been trying to win independence from Spain, held a snap election last December. But it still doesn't have a president or a government because of legal wrangles and political disputes with the national government over the secession bid.
The judge could also declare Turull ineligible to be Catalonia's president.
Speaking at a press conference at the University of Helsinki on Friday, Carles Puigdemont denied discussing exile with Marta Rovira, who defied a summons to appear in Spanish court hours earlier.
In total Judge Llanera charged 13 Catalan separatist leaders with "rebellion" and, in a 70-page summary, concluded that 25 Catalan leaders will face various charges ranging from of rebellion, misuse of public funds and disobedience related to the October 1 independence referendum, which was declared illegal by the Spanish Constitutional Court, and the October 27 unilateral declaration of independence.
"It is not right for a judge to do politics", the former leader said just moments after the court ruling.
Catalan secessionist parties failed on Thursday for a third time to elect a new regional president, leaving them with a deadline of two months to pick someone or hold a new election.
The court's decision means a second leadership vote for Turull which was due to take place on Saturday will not happen because his presence is compulsory.
Twenty-five Catalan leaders will be tried for rebellion, embezzlement or disobeying the state, Spain's Supreme Court has ruled, in a sharp escalation of legal action against separatists in the north-eastern region.
The court also issued worldwide arrest warrants for six other Catalan figures who have fled overseas, including former regional president Carles Puigdemont.
At least 24 people have been injured in clashes, after thousands of people took to the streets of Barcelona to protest against a Supreme Court decision to prosecute Catalan independence leaders on rebellion charges.
The four have been in pre-trial detention for months.
The move brings Puigdemont, who has fled to Belgium and his allies, one step closer to a trial in which they would face up to 30 years' imprisonment, if convicted.
The ruling also covered Puigdemont's former deputy, Oriol Junqueras; pro-independence civil society campaigners, Jordi Sanchez and Jordi Cuixart and former Catalan interior minister, Joaquim Forn.