By Daniel Bates Last week’s fire took a “significant” toll on the Denver Broncos‘ Mile High Stadium. So much so, that the repairs may not be done by the time the next NFL season rolls around. On Monday, Broncos CEO Joe Ellis said that it will be a “real challenge” to replace the damaged seats and charred suites that were burned up in the blaze. According to Ellis, about 14 luxury boxes were damaged, and “a couple hundred seats.” “At first glance, we thought it wasn’t much of a big deal, but after going to see the damage and witnessing it in-person and spending time with fire inspectors and peo…