Just in case you were expecting to refer to them as "the guy and girl with the tiger," this week's Jump provides the name for the hero and heroine of Mistwalker and Nintendo's The Last Story.
The hero is Elza. He's a mercenary who's come to Ruri Island and admires the knights, who have both rank and power.
The heroine is Kanan. The magazine says that she wears a white dress and seems to have a high class air about her.
Aside from the names, all the info in Jump is old. But this does appear to be the game's first Jump appearance, so perhaps we can take it as an indication that Nintendo is beginning its push for the Wii's next big RPG to follow Xenoblade.