Perhaps never?
NoA has shown very little interest in bringing the game to the U.S. EarthBound has not even been put on virtual console yet so its hard telling at this point.
Ness is from the game Mother 2 on the SNES, which was called Earthbound when released in the US. Lucas comes from Mother 3.
Because Earthbound for the SNES Did'NT sell very good but sold greatly in japan. So when MOTHER 3 was released we Americans (and Europeans :D I didnt forget you guys.) Didnt get MOTHER 3. And the only way now to get MOTHER 3 is by an emulator. Or get a hacked copy from eBay for a bout 100 bucks... yea. Stupid.
Mother 3 is a role playing game by Nintendo, HAL Laboratory, and Brownie Brown for the Game Boy Advance. It was released in 2006, but it was released only in Japan.
I Led 3 Lives - 1953 The Mother in Law 3-18 was released on: USA: 1956
Billie's Mother - 1916 was released on: USA: 3 July 1916
Mother of Pearl - 1915 was released on: USA: 3 April 1915
The Unwelcome Mother - 1916 was released on: USA: 3 September 1916
Crescendo - 2003 Mother's Day 2005 3-11 was released on: USA: 3 May 2005
I Led 3 Lives - 1953 The Mother in Law - 3.18 was released on: USA: 1956
How I Seize It - 2010 Mother's Day 3-33 was released on: USA: 24 May 2013
Disappeared - 2009 A Mother's Mission 3-11 was released on: USA: 14 March 2011
Duet - 1987 His Mother Myself 3-7 was released on: USA: 18 December 1988