I seriously don't think she needs one. Judging by her slayage from pre-orders I'm sure people will request it like crazy.
She really doesn't need one. Her iTunes sales are going to force radio to play the song, or they risk losing their audience to MP3 players. Never would I have thought after hearing "Chasing Pavements" for the first time that Adele would become one of the biggest musical artists of our generation. Queen.