Earthbound (Mother2) fans are a truely small group outside Japan.
It sold Horribly in both the US and Europe.
We still haven't gotten Mother3, and it came out in April 2006.
Nor have we gotten Mother1+2, the GBA port of Mother and Mother2(earthbound) which came out back in 2003.
I doubt we will see any of the games again, though I would like to see them on virtual console.