Remathilis
Legend
Both the duskblade and the 4e bladesinger had no racial restrictions despite being "elven", so I doubt it.I really hope the "elven" in elven bladesingers is only as a shout out to the original creatores of said style and the class will state how elves had to start to train members of other races in bladesong, after the spanking the received during the second fall of Myth Drannor.
We have non-LG paladins in 5e, don't re-introduce race-bound classes