No there won't be more fights announced.
The card is fine, it's solid.
Randy Couture vs. Brock Lesnar
Joe Stevenson vs. Kenny Florian
Demian Maia vs. Nate Quarry
Amir Sadollah vs. Nick Catone
Gabriel Gonzaga vs. Josh Hendricks
This is the televised card, like you said the main event and co main event are fine.. But outside that, they don't need any other big names. Anyway I'd say Gonzaga and Amir are fairly well known to the casual fan. Amir from TUF and Gonzaga because his of his KTFOing of Mirko. He always gets a good cheer.
Fedor fights I want to see..
Fedor vs. Josh Barnett
Fedor vs. Randy Couture
Fedor vs. Tim Sylvia -
Fedor vs. Andrei Arlovski -
hmmmmm, i wonder how many become reality..