The state’s highest court will rule on whether the way Texas pays for public schools is unconstitutional. The Texas Supreme Court announced Friday it will hear the state’s sweeping school finance case.

More than 600 school districts sued the state back in 2011 after the legislature cut more than $5 billion in education funding. They argued budget cuts left them without the resources to meet academic standards, and said the gap between property-rich and property-poor school districts was too great. An Austin-based district judge ruled the cuts unconstitutional, but that ruling was appealed to the Supreme Court last year by then-Attorney General Greg Abbott.

Friday’s court advisory also set up the timeline for the next step in the case. In all, there will be about six months for both sides to file briefs and replies before a date for an oral argument is set. That means the decision won’t come until after the end of the legislative session. If the Texas Supreme Court upholds the unconstitutional ruling, the Legislature will have to come up with a new funding formula. That would require Governor Greg Abbott  to call a special session.