As long as we get the TS classic option for everything (and I don't see why we wouldn't), I'm fine with any optional change. For what it's worth, I like Quickshot Mania and Global Domination just the way they are. I do avoid Ramp Rampage unless I'm having a really good day... but I don't think there's a way to "fix" inherently difficult modes without watering them down completely. I can see RR stacking since nothing except TMF really uses the ramps (and these two stacking would be pretty silly), but QSM and GD are big enough that they should be their own modes. If QSM/GD were "take it or leave it, maybe you'll happen to make the shot, maybe not" they'd be less fun. The wizards need that high score, filthy casuals like myself feel good about taking what the table throws at them.
Well, except Dinosaur Stampede. If anyone tells you they like Dinosaur Stampede, they're lying. And should get trampled by stampeding dinosaurs.