A Mumford & Sons-like all-day music festival might be headed for Portland’s Eastern Promenade next summer, but it’s not known what the main acts will be.

Townsquare Media Portland will ask the Portland City Council on Monday to approve a music festival for the Eastern Prom sometime in August. The proposal from the company says the artists will be selected soon after the city approves closing off part of the Eastern Prom for the event and the date will be one the city and Townsquare Media Portland agree on.

Mumford & Sons performed in front of about 15,000 people on the Eastern Prom in 2012. By all reports, the event went well and there were no arrests or major problems, but some Munjoy Hill residents weren’t happy with all the closed-off streets and people walking through their neighborhood.

Townsquare Media Portland, which owns 15 radio stations in Maine, said it expects the event to draw up to 8,000 people. About two-thirds of the hillside area would be fenced and gated, less than the area that was blocked off for Mumford & Sons.

Work on setting up the festival would begin on the Thursday prior to the event, and the festival itself would be held on a Saturday from 1 p.m. to 10 p.m. on a stage set up in the Cutter Street middle parking lot, the proposal said.

Beer and wine would be sold at the festival, according to Townsquare Media Portland’s plan.

The fences, stages and other items brought in for the concert would be gone by noon on the Monday after the event.

A spokeswoman for Townsquare Media Group, the parent company based in Connecticut, declined to comment Friday, but she said more information might be released this week if the council approves the festival.

The company’s website says that it stages more than 500 events a year, from classic rock and country music festivals to beer festivals and flower and garden shows.