What's the deal with forge and file share?

There’s a fair amount of content that didn’t make it to Halo4. There are tools missing that were in Reach to create games types like race and so on. One of the cool things about forge was the amount of options players had to create awesome custom game types. Removing options limits the potential of what this game could be. Was the decision to leave out content intentional or an oversight? Will there be additions made for us in the future? What’s more perplexing is that the game has been out a month now and File sharing is still not working properly. These are things that made Halo3 and Reach more fun and engaging. Hopefully some of this will get resolved soon.