Some questions.

So I have some questions. But first let me clarify something first. I was not one of the cool kids that played before November, 20 11:59p for whatever reason.
And now on to the questions.

1.) When will the people that didn’t play before the 20th of November get their specialization codes ?
2.) If I play when capped at level 70 will the XP from Spartan OPS, War games, and Commendations be retroactive when I do get the codes?
3.) Will I get a code sent to me via email when I hit 70?

If either myself or others like me can’t gain XP when capped at 70. There is no real point to continue to play and waste XP gains. Let alone buy map packs. Don’t get me wrong I’m really enjoying the game so far and want to continue to do so. I would just like to know if I should start playing another game when I cap at 70 or if the XP will be retroactive.

If anyone can point me to a post or link with information about this please do so.
Thank you.