Justice Gorsuch
Donald Trump has announced Neil Gorsuch as his nominee for the Supreme Court. He is almost certain to be confirmed.
Gorsuch looks to be a very solid choice – like Scalia an originalist who thinks the role of judges is to interpret the law, not to make it.
Good background on him at Vox.
He is only 49 years old so could well do 30 to 35 years on the Supreme Court.
His appointment will not change the balance of the court but if another vacancy occurs, then the balance on the court could change significantly.