I could quite easily see a larger bcd being reintroduced with the size of the chainrings being used currently and if trends continue in future. 144 will still be suited to the general track rider, but with elites approaching 60t rings and putting out huge amounts of power,it shouldn't be too long until it's looked at.
Personally I can't fault my 7710s and whichever BB is between them, I'll probably never really stress them enough to worry about absolute stiffness anyway.