The Joker is bad, they overused him to the grave and to the point Mark Hamill got sick of playing him, after so many rounds of laughing gas, we develop immunity, instead of using him like an asset, they did to him what Star Trek Voyager did to the Borg.
You have more chances of getting a true (in spirit) sequel to Tiberian Sun ala Freespace: http://www.ppmsite.com/
This is a community dedicated to make C&C mods, most of which now days are collabs to make sequels to the WW story lines (Like their "versions" of Blue Planet, Inferno, etc.) Hell, they even have people making CGI cut-scenes for the most ambitious mods!
As far as the whole Bioware bullschit, it's a trap, the developer is Bioware Victory, which is the renamed Victory Games studio EA had, which in turned was a restructured EALA, the guys who made anything post Generals.
It's just a trap for suckers who still love the name Bioware, it's a brand now, not a studio.