They didn't make Iden Versio and her ID-10 seeker droid Dio from Battlefront 2's single player campaign, despite many requests at the time, so I can't see Cal and BD-1 being any more likely. They probably assume that by the time they could get a figure out there any significant interest in the game and its characters would have largely died off. And to be fair, they're probably right in the majority of cases.
Mind you, if Sideshow wants to continue making Star Wars figures as well then I've long thought it's the various key and background aliens, alternate takes like mythos, and the more popular of the expanded universe characters from video games, cartoons and comics that they should be focusing on. Fill a niche that Hot Toys is never going to touch and do it well and it's a win-win for everybody. But as things stand I can't see them going anywhere near this either.