Based on conversion"s I've had the days of quick upgrades at JQ are over. 5-6+ years for 78 FO and 9-10+ years for 320 command. You'd probably be in a pine box before a 787 command comes Up. The big unknown question is how the LR and XLR impacts the 787. It's either dead as many believe, (XLR can do everything apart from HNL) or perhaps it's not. It may even be expanded with QF 787s or a new type all together. Who knows. Always thought they'd fill a 78 to Vegas, Athens or India but the brain's trust paid extra to remove the crew rest