Emerald is not just popular 'round these here parts', but if you hit up some blingtard clubs, its the viewer of choice.
Blingtards will go with whatever the swing-movers in their cliques do. One or two of those people switching to 2.0, and Emerald becomes a minor little known viewer again.
That's not a crowd that's very big on the forums though, but they are on assorted fashion blogs. If they stick with Emerald, something will have to give, or they'll be in shock if LLs shuts down Emerald. But again, if their swing members move on, you'll see them migrate en-mass and 'nobody who matters' will care if Emerald is or is not a choice anymore.