If you want exposure do the developmental leagues. You have NFL Europe if he latin/hispanic crowd is so important create a developmental lead for Mexico, Central America, and the Carribbean.
Well, I'm sure a rep from the NFL would say that playing a game there will determine just how much success a developmental league could have. I know American football's popularity is growing in Japan and probably Germany (due to NFL Europe having 5 teams in that country). How fast it's growing is probably a small figure though.
If we're on the subject of international sports, though, one sport I've recently discovered is halfway entertaining is Aussie rules football. I don't share the common American's bored reluctance to watch soccer, although it's not one of those things that I find that interesting. I like watching Freddy Adu play because his speed on the field reminds me of watching Vick play football, and I'll watch the US somewhat in international competitions, but otherwise, I don't care too much. But back to Aussie rules football, it has the flavor of soccer, but the toughness of our football.
Watching some of those guys punt the ball, you begin to wonder why Darren Bennett and Ben Graham (current Jets punter) are the only guys that NFL teams have brought over. If you haven't seen Aussie rules yet, I believe Fox Sports Net has a highlights show that it runs on Friday afternoons. I like it.