I definitely don't understand this hate for the minigames.
What can do more can do less. The pyjaks slaughter was far from perfect, but it was funny !.
Obviously, a very advanced space fights game wouldn't fit with ME, but being able to take control of one of your ship's turret (for instance) doesn't mean there won't be any cinematic, and doesn't mean the game will be less fun.
10 years before, we couldn't take control of a turret in a FPS. Now we can, and it's a lot better.
So, Turrets in ME3, I'll say yes, whether I'm on the Normandy, on a planet, in my hovercraft, or in my landing ship.
I'm sure if most of the players were prompted if the planet scanning has to be kept, they'll say no and it makes me feel sad. The planet scanning is not the best part in ME2, but I love scanning planet to take a deep breath between two big missions. Make this non mandatory so everyone's happy. Let's say yes, I agree, but simply removing it, NO WAY.
And I also wanted to say that a new turret mini game for instance doesn't mean the space battle video will be removed. It can be different elements integrated together, as the fight aboard the Normandy in the last mission.
It's what I call innovation, and I trust Bioware enough to be sure they could do something great.