I don’t know where you got those ages but Wikipedia lists DOB for Scalia as 3/11/36, making him 76, Kennedy as 7/23/36 which makes him 76 in a few months. Ginsburg’s DOB is 3/15/33 (beware the Ides of March) which means she is 79 and Breyer’s is 8/15/38 so he is 73 and will be 74 at the end of the summer.
Sometimes justices will step down when the president is a philosophical soulmate so he can replace them with somebody similar but it doesn’t happen all that much. I think it is very likely there will be no new justices during the next presidential term.
Not sure I agree.
SP judges do live a long time. They have secure jobs and not too much to do.
However, four years is a long time when one gets into one’s 80’s. I think the liberal judges will hang in if they can during Romney’s presidency, but maybe they can’t.
Anyway, if Romney does a decent job and the economy turns around, he’ll probably get 8 years. That will give him almost a hundred percent chance of nominating several judges.