Fortunately, we have the technology to extract those. Part of me thinks it'd be better to spring all their assets and just build a community-developed version. Their handling of it is just depressing.
If we don't want to cause maximum copyright infringement, break out Unity or something and build a thinly-veiled imitation that's just different enough to not break copyright and still have everything the community has been asking for instead of 'SALES EVERY WEEKEND, GET YOUR DIGITAL EYESEX WHILE IT'S HOT.'
Ghost Heat? Gone. Weapon Balance? Start your own server and tweak tweak tweak. Maps too small? Huzzah for randomly generated maps! Economy? Why not have an actual economy with players joining a merc corps at the very start? Why not a real goddamn market, with trades between players? Why only 4 game modes? This is BattleTech for gods' sake. There's supposed to be assassination, espionage, heroic last stands, daring raids, sieges, orbital bombardment and Trials. There's so much they could have done and have chosen not to.