Not sure if this is ambitious enough. Maybe you should make a database, too :)
But seriously, you'd have to convince me of a lot of things before I consider using a service like this, much less basing a business off of it:
1) The bar for your language is going to be high. Not only does it need to be appreciably better than everything out there, it needs to compensate for a lack of community / libraries.
2) You'll need to show me that your language is production ready. For most languages, it takes years to build up that level of confidence.
3) Holy vendor lock-in, Batman! What happens if you go out of business? You mean you're trying to lock me into an ecosystem that you haven't even built yet?
4) If that's not all, a new editor as well? Editors are substantially harder than most programmers think they are. It's hard to make them fast, harder to make them intuitive and there are tons of companies who focused solely on editors who have failed.
5) "High-level primitives"? "Use APIs as easily as if they were functions"? Honestly, sounds like using AWS services with Boto.