He stays in China. Gets even more hugely popular. Meets the president of China (do they call him the president?) and they have a nice chat about Jimmer's upbringing and BYU and Mormons and such. The president is impressed. Eventually Jimmer becomes so beloved that China opens up to Mormon missionaries.

I don't really believe this, but you hafta think him being there might have some impact, right?. Unless his religion is super under wraps. Which is probably pretty likely, I guess.