It's 3rd party, but I dunno if it's a browser game...
Nothing besides the announcement. Kondo did mention improved graphics, though.
I started Sen I, but didn't play much because I'm kinda useless like that. And 'cause Korean my Korean isn't THAT good. Definitely picking it up again when it comes out in English next week, though.
Also, it looks like Falcom is interested in selling Tokyo Xanadu overseas, after a huge success in Japan. (Expected sales were 50,000 copies, but it sold like 150,000.)