Halo 4 specializations, important question

Hi guys, i dont read the forums too much and i’m aware that this could be an old question.

Are there any news about the release date of Halo 4 specialization unlock?

I’ve already reached lv 70 and im stuck about xp… i dont want to waste my commendations xp bonus too. It’s better to keep them until next specialization unlocks.
For sure i dont want to spend extra money to buy the useless (in my opinion) unlock priority code from marketplace =)
It also can be strange but i have not received any alpha unlock gift code from 343 even if i started playing matchmaking in the first release week… there were was some rumors about this code on the internet given for free.

Thanks for the answer, feel free to discuss this topic.

My K/D in Halo 4 is 2.24, add me as a friend if anyone wants.

For the next three weeks they will be all be unlocked for those players who dont have them. I cant remmeber what two are coming on Monday but you will get two for sure

Pioneer and Pathfinder will be unlocked January 21st