It should be pretty obvious, to most anyway, that there are not as many people working the 'wgt' side things anymore. I suspect that along with office staff there are only a couple of people still actively dealing with 'game/server' related maintenance and or coding issues.
TG has no interest in WGT as a business or game, the community of players even less with respect to the PC version of things. Their tie-in has to do with the mobile version and their entertainment business.
Customer service is all but non existent as it used to be, again probably falls to one person.
There has, and won't be anymore significant or game-play developments for the PC version, it would be idiotic to pursue anymore. They'll keep the game running as long as possible to keep the revenue stream going.
Game is what it is now, play it or don't...