The Plot!

So, I realize I may be getting ahead of myself here, but I've developed a basic plot outline for my second book!  I haven't quite finished the first one, or even attempted to hire an agent or sell the manuscript,  but I just couldn't resist :)  I'm pleased with it,  I'm just worried that I'm stepping out of the YA market with it because I wanted it to take place a considerable amount of time after the first one :\ We shall see...