The entire menu on the left side of this website is Flash, if you're seeing that then your browser supports Flash.
You can't even log on to the main website without having a Flash plugin running as the user/pass is Flash/AS.
As D-Day looms closer, more and more browsers will kill it, they're not going to wait until the last day, some already have. Just make sure you keep some 'old' installers around and kill Update option. Then it's up to TG/WGT to keep the servers online.
Adobe doesn't care, their is no licensing issues or anything of that nature, doesn't matter to them if people keep on supporting Flash content, they just aren't going to have anything to do with the player anymore.
There really is nothing stopping WGT from keeping the game servers up and running, they could even create content still... There just needs to be a reliable server to download various browsers which support the player is all. Doesn't even have to be WGT/TG.
I suspect you won't see that happen though, just a hunch.... lol