GFS keeps insisting on an impressive storm in the Caribbean next week. Most other models are not too bullish and show a minimal TS at best. This system originates from South America, which is kind of unusual and one of the reasons I'm not sold on the idea.
A lot of heat potential in the western Carib, if something can stall over water long enough its an easy CAT 5 like Wilma or Mitch. There hasn't been a major in the western Carib in a long time. Mathew didn't really make it past the eastern tip of Cuba.