I definitely hope/think they'll get a B&M wing around 2020. It will have been 3 years since their last coaster, and as more evidence comes out, I think the chances will be more likely.
I hope not. There may be a bunch of Wing Coasters being built in Asia at the moment but the last install in the US was 3 years ago, would be nice if it stayed that way personally.
There's space for one in between Beast and Intimidator but then you have another coaster going out of the main park, and Wings do look excellent offride.
As much as a Wing would add to the diversity of the park, so would an Intamin/Mack LSM multi launcher or a Ground up RMC.
I wouldn't be surprised if they added one in 2020, but considering the possible alternatives, I'd be disappointed.