Originally Posted by
sipples
If you mean when JMB members will be able to accrue miles that count for oneworld awards, that's already true. When JAL joins oneworld current JMB mileage balances could be used to redeem on oneworld airlines. JMB elites will have certain privileges when flying oneworld carriers, and there will be significant reciprocity. (First Class lounge access will be interesting, though. JAL's own top elites don't get that. It's for paid F.)
Do not know how that may work out, but AA has even more interesting restrictions on lounge accesses for both its own AAdvantage members and First Class travellers when traveling domestically. Strangely enough, these restrictions do not apply to OW elites from other airlines.