Evolving subjunctive

[Bill Smith]

Skip Carey (son of Harry) is one of the radio/tv  announcers for the
Atlanta Braves.  When there are two outs and he announces the batter on
deck, he says, "Chipper [e.g.] would be next."  Is this a new use for the
subjunctive?  For Cubs fans, did he get it from his father?
On the other hand, he will also say, for example, "If he doesn't stop, he's
out," when one would expect "If he hadn't stopped, he would have been
out."  Are these unique to him?