Members of Holbrook’s representative Town Meeting will convene Wednesday to vote on whether to create a regional school district planning committee. The three-member committee would include one School Committee member and be tasked with planning — along with the town of Avon, officials hope — a regional school system for the two communities. Holbrook’s exploration of regionalizing its schools comes as the town pursues state funding for a new school building. The proposed school could serve Holbrook students in pre-kindergarten through Grade 12 or function as a future regional high school. Town Meeting starts at 7:15 p.m. at Holbrook Junior-Senior High School.