Titan was a prosumer card. It was to bridge the gap between professional cards and gaming cards. It still is a great card for double precision. Gamers who bought a Titan shouldn't be that angry because the card wasn't really meant for gamers. It is a prosumer card that just happened to own at games as well. My two cents.
As for Maxwell, I highly doubt we will see it anywhere in the first half of 2014. Knowing Nvidia, they won't release it until AMD comes out with something new.
If were being honest the prosumer part is the only thing that saved it from being a total absolute backhand from nvidia to its hardcore diehard fan's.
i keep hearing about its dual purpose roll but everyone seems to forget 7970 double precision performance aswell in open CL. which is a more open source platform to begin with.