That's definitely in the cards...
New subjects are no longer launched on Socratic, at least for the time being, but chances are that the process will resume at some point in the future.
Without going into too much detail, the team is currently working on developing and improving the Socratic app--you can read more on that here, so the launching of new subjects has been put on the shelf for now.
That said, there's a good chance that both of those subjects could come to Socratic soon.
We can't say for sure at the moment :D