I think personally, it all depends on what they offer in-terms of unique attractions and/or the Environments that these areas accompany.
If SWL does enough to diffrentrate from the ride system that is reported to be possibly at DAK (And from Shanghai); and that the Falcon provides something much more immersive than Soarin 2.0 in DAK and Soarin itself; then I think that Disney has them on the ropes in a sense.
But we're also talking about Nintendo, which sounds like it may have 2-3 major attractions at launch, one using the Busbar, another possibly being a family coaster with the Vertical Drop Track, and the Third seeming like something that hasn't been done for Universal.
I think it's a "Wait" situation, but it could turn interesting.
As for if it'll open around the same time..
dear god, I hope SWL doesn't take till 2020 for Orlando. I have a bad feeling that it will, but I'm hoping and waiting (even though some of the more trust worthy individuals have said of it being around that time).