I came from 17 years of 3ds max use and work as an artist in many game studios in Montreal and i have teach 3ds max for 7 years. 3 years ago i start my own game and i became an indie dev.
So i have some real production experience in the video game sector in Montreal and all i can say is simply that current big studio cannot switch their pipeline to blender since first even if blender is an excellent 3d software it is missing so many features that studio will never make the switch. Add to this that even if they call Blender office and yell at Tod to release an urgent patch for their production pipeline they will not get the almost instant help they got from autodesk(Only very big studio that pay them millions in licensing).
Imagine a big studio with 700 employees that all got their formation for the main big boys like 3ds max or maya and now calculate the cost and time require to switch them over blender and you got another reason why they wont switch.
Where Blender will shine is with the indie game developer market that cannot afford the insane subscription price of 3ds max, remember that today indies are going to be the tomorrow eventual big studios so thing will get better for Blender in a few years.
I myself recently switch to blender and i am very glad i did it since blender is way faster for modeling and also very stable compared to 3ds max or Maya crashing every 10 to 20 minutes. I really miss a lot of neat tools from 3ds max like the unbeatable splines,the precision tools and spinners, the particle system, the max listner and max script, the geometry painting system, the modifier stack, the very numerous and handy modifiers, the amount of primitives with parameters etc.
I know some studios use blender for very specific task and often only have a few employees capable of working with blender while the majority of their staff work on Max or Maya.
With time Blender will probably get in but it is going to be a very slow process and studios will only consider using it once features are really on par with the software they use.