Representatives from Indianapolis, Columbus, Ohio, Toronto and Philadelphia were in New Orleans this past week to meet with WWE officials.
Columbus pitched the idea of holding a WrestleMania at Ohio Stadium, which holds 102,329 for football, meaning WWE could break the all-time attendance record. That record may be broken even earlier if 2015 is at Dallas Cowboys Stadium.
The cities above were likely interested in 2018 since Santa Clara, CA, is booked for 2015 and Dallas Cowboys Stadium is expected for 2016. Nothing is final for 2017 but Orlando is supposed to be the favorite.
(Source: Wrestling Observer Newsletter)