will.i.am doesn't think he's futuristic. Infact, it's true that a lot of his songs sound old-fashioned. Most of his songs sample songs from the 80's.
HOWEVER, and he's spoken about this in interviews before, most of the songs that he sampled weren't, and couldn't be big mainstream hits when they were released back in the 80's, but they can now.
Boom Boom Pow for example, samples a 1982 song called Planet Rock by Afrika Bambaataa & the Soulsonic Force. That song got to #48 in the US charts when it was released. will.i.am's version of the song (Boom Boom Pow) ended up as the biggest song of 2009 in the US!! Do you get his point? The beat of Boom Boom Pow is dated, it's quite 80's, but in terms of MAINSTREAM music, it's very current. Boom Boom Pow would've never been played on the radio back in 2003, for example.