Ok, let's try to evaluate this phrase everyone is tossing about. You don't even need to work with anything more than one word. It's a simple interpretation:
"There’s a character named Ness who has appeared in the Smash Bros. series up until now, and Lucas is very similar."
The character Ness has appeared in the Smash Bros series up until now. What is now? Now is Brawl.
You wouldn't say "I have been alive all my life up until now." because that doesn't make sense! You'd have to be dead to say that!
I love Ness to death, but I've come to accept the fact that Ness is gone, and you all should, too.
GTF over it, put all your Ness pictures in a box, remove Ness from your top friends, and just let it go.
It's not healthy to linger like this.
Lucas plays just close enough to Ness (special moves-wise) that you can still get mostly the same fix vicariously. So do us all a favor and quit holding onto a dead dream..