Charter board leaders will decide in coming months whether to switch for 2016-17 school year.
New leaders to have sixth of seven parents meetings to hear concerns.
Schools with just ninth through 12th grade received letter grades.
Town-hall-style event is part of series of meetings in each of seven school districts.
Henderson Lewis continues his listening tour of all seven city school districts.
KIPP expected to finance a K-8 campus elsewhere on its own, freeing money to rebuild Cohen.