Landon's situation is a unique one, is there another player in the world in a similar position, staying in their home country to help a domestic league grow? I can't think of any. He's the flag bearer for US soccer and has a great deal to do with the growing popularity of the sport in America and the growth MLS has had, surpassing even NHL and NBA in attendance.
There is a lot more burden on his shoulders than most any player. Landon will leave an important legacy because there are a lot more American kids playing soccer these days beyond youth levels (my son for example) and seeing that they don't have to turn to American football or baseball or basketball to play professionally.
I'm thinking one more season of the MLS and he's going to seek to return to Goodison full-time next winter, sounded like it in the interview. He will have been more important for the growth of US soccer than anyone else, it will finally be time for him to do what is best at that time. All of us that want him to make a permanent move to Everton need to understand the pressure he faces to stay in the US.