I came across this picture on Twitter, looks like it could be the new 919 that we should start seeing on tour soon.
I think there was talk of Titleist introducing composite material to their drivers ala cally and TM. looks like it could be the case here possibly, the rear where the weight is looks to be different to the front where the numbers are.
Can't wait to see the 919 start making it out on tour and Team Titleist finding out what tech its full of!!