According to the danish business newspaper, "Børsen", LEGO is negotiating to produce Simpsons toys.
The entire, short, story is available here in danish http://www.dr.dk/Nyheder/Indland/2013/03/07/065215.htm
Mads Nipper from TLG confirms that they are close to making a deal, but that is about it.
Personally I think that it is several years too late. The Simpsons aren't really that hot anymore, eventhough 8year olds find Homer and his antics, funny.
But if it means that we get a fat minifig, then I'm all for it.