I came across the great news on the routing engine supporting customizable vehicle profiles.
Will this feature become generally available in the paid API’s in the foreseeable future?
Sure, this will come. Still there is no timeline for it. As we pointed out in this blog post this is a work in progress and we need to get more confident about the approach and format etc.
But if customers need a customized profile in a dedicated setup, then we would already support this. But not as a per-request document, only for the import.