I would like to see Yamaha update their QY arranger module line with the Tyros 2 sound engine, thus ending the need for a 76 or 88 note version of the Tyros arranger, but like many others I seriously doubt that it will ever happen. Roland's last attempt at a module version of their DisCover arranger was a flop... that may have made them and others gun shy about another.
However, the Ketron MidJay is a brilliant little module with more functions than any other arranger module ever that I know of. I've been tempted to get one all year and may yet but it's close to NAMM-time now so the wait is on to see what comes out next.