Deleted scenes maybe? - at least his Mom. Dad died with the Kelvin. Although they could [and should] bring in Hemsworth to play his adult brother.

Interesting that there wasn't some sort of public backlash [shown] after a the Vengeance crash. a warship built in secret crashlands into the middle of the city and eveyone is okay with that.

With the enterprise off to explore deep space it'd be interesting to see the size and strength of the starfleet after the loses in these two movies.

I don't really have a problem with Khan played by a brit - Montalban wasn't Indian either. And John Cho isn't Japanese.