I think Chicago would take the money and run if the Bears made an offer to buy out the lease in a single lump sum payment at 75% of what remains owed between now and 2033. The only question would be what Chicago does with Soldier Field if the Bears leave. Well the Fire have a lease there now, and its still good for those large summer concerts, so they could easily keep the venue open and maybe do a remodel to make it more soccer/concert friendly. Fake Edit: Nevermind, the Fire's lease is only for 3 years so it wouldn't be difficult to boot them if they wanted to tear it down. Don’t the colonnades have landmark status? If so, they (whoever that is) will have legal trouble tearing it down.