Current SC structure and model is against any kind of integration.
Anybody knows what are the chances that SCriptcase will finally separate PHP, HTML AND CSS to follow MVC model ?
Doubt very much it would be on their priority list. Purpose of MVC is to help you organize your code for easy readability and maintenance. SC is a generator which has compartmentalized your code in another readable/ maintainable way.
IMO for that to be possible (MVC), they would have to start ScriptCase from zero…
I think that all is still based upon the codebase of 10 year ago and migrated into the current version. So I agree with @marmede. It would require a total overhaul.