Even if mayoral control vanishes, charter schools would still face challenges in expanding their operations.
One of the most controversial issues in education has been whether to allow charters to share space in public-school buildings.
The de Blasio administration has been stingy in co-locating charters, and a revived Board of Education might not be any different.
The five borough presidents would have an appointment each to a seven-member board. while the mayor would have two appointees.
But two borough presidents have already expressed misgivings about allowing charters to share space with traditional schools.
Manhattan Borough President Gale Brewer has opposed some charter co-locations in the borough.
“Co-locations in most cases is a challenge in Manhattan,” Brewer said on Thursday.
Brooklyn Borough President Eric Adams is a “strong supporter” of charters but ”does not support forced co-locations,” said rep Stefan Ringel.
Two borough president appointees plus two mayoral appointees would have a majority on the board if the issue came up.