Just want to remind those of you anticipating Lego Universe's release that it is a video game made by the Lego Company.
What does this mean you say?
Well...I'm not sure if you have ever tried the games on Lego.com but if they are any indicator of what the future holds, you can bet your onions that Universe will only have pre-made chat options and at best highly filtered chat (ala Runescape but with more national socialist and a little less gay)
I can't really think of anything that LEGO could add to their upcoming game that would defeat Blockland other than pure nostalgia from regular Lego bricks/ themes.
As for Roblox...it may be dead but I would argue that it never really lived. I tried it and was severely dissapointed. The controls were terrible, the browser based server network was difficult to navigate and everything seemed to only be available for members (now where have I seen that before...). The physics afforded a brief 'hit' of excitement but only served to further my annoyance at the dubious control scheme. Talking in chat proved useless as everyone seemed to be logged into some kind of alternate chat channel were supposably great adventures were to be had. At best I received a "screw you" response to my indignant requests for help in an exceedingly complex game.
Hearing of Roblox's death is like hearing of a whale dying. More specifically, a toxic waste-spewing, fire breathing, baby-eating, loose-cannon whale with a lethal desire for wealth and a small school of cleaner fish sucking what little nourishment there is to derive from it with little regard for their own health or pleasure.
tl:dr who cares?