Did he already reneg his contract with the Cubs? I could definitely see him leaving in free agency, what a whiner. If they did remake it though they should keep the same basic design but make it with a retractable roof or something along those lines. For all we know by the time the stadium is built he could be out of the league.
A lot of people think that the reason the Cubs have not won a world series in so long is because of Wrigley Field and it's quirkiness. It is very hard to build a team to be strong in one suit (pitching or hitting) because that place is a different ball park everytime they play.