Shouldn't that be, "Will Apple Include a Title Case Key in Future MacBook Releases?"
I don't know why it'd be built into a keyboard, there's more room for confusion and misuse among the uninitiated than benefit for the few who might need it. While not as annoying as all-caps, I think an entire email message in title case has no redeeming social value. It's a Style, on a par with Body, Numbered List, Header, Footer, Subtitle, Heading... Honestly, a Bullet List key would find more widespread use. It's the kind of thing that could be (and probably ought to be) assigned to a keyboard shortcut, for use only by those who need it.