There is also another two, or more threads on the same topic here, I really don't understand why there is the need to have another one, I appreciate what you are trying to do and say, I really do, but the amount of threads involving this subject is getting a little ridiculous now.
There are already speculations of there being Sangheili in Custom Games and Forge, it will be a shame when they aren't in Matchmaking, but lets leave the humans feeling superior for a while, whilst the Sangheili adjust to this new way of playing.
343 Industries are knew to making Halo games, let us leave them an opportunity to do their thing and see what they produce, as long as I can play as a Sangheili in Halo 4's Custom Games and Forge, alongside this 'Elite Ops' everyone is talking about, that's fine. The Sangheili race will live on, and we shall continue to crush all that stand in our way. That and our honour, is all that matters.
~ Fal 'Kai Taralumee ~