As a non breaking change first phase - we can transition to standalone but remain with an exported module importing and re-exporting the standalone components/directives.

One other concern is we currently have multiple directives and components that are needed for the split to function. How will end users import those in a "bundle"? If I remember correctly exporting a const array still doesn't work from libraries.

I agree on the fact that we can easily do both for the current version. And when we bump to a major version remove the module.

About the question, yes there is a problem with the import of standalone CMP /directives with an array. But there is also a workaround, we can use the spread operator to still import them. There is an ongoing issue that will fix the array without a spread operator.

Just adding that we should introduce provideAngularSplit or provideAngularSplitOptions to allow using ANGULAR_SPLIT_DEFAULT_OPTIONS easier.