About Swain and his visual.
I understand the public outcry for his direction of appearance, but consider this.
What if this is the timezone that VGU Swain is present, and the old swain was several years before this, they literally took a few years old champion and turned it into a future version in Runeterra timeline.
It would explains a several thing. His limp being gone, his arm being gone and replaced by a demon contract he probably made after the fact that returned some of his age.
So in other word, new Swain is accounted in the today's Timeline of Runeterra than the year 'old' Swain was in.
Just take this as a grain of salt.
Remember, Swain and Leblanc was in a sort of alliance in the old Runeterra, but his new lines implied Leblanc betrayed him and cost his arm.