Feature requests typically take a lower priority due to the developer’s focus on high-priority crash and showstopper bugs. However, you do have access to source, so if you’d like to implement the feature you are welcome to enter a pull request.
As far as NewObject goes, as far as I’m aware, this isn’t exposed to blueprints.
Construct Object From Class is limited to classes that inherit directly from Object. This forum thread may be relevant depending on your use case: Construct Object From Class - "Wrong class to spawn" error - Initializing objects via blueprint - Blueprint Visual Scripting - Unreal Engine Forums
Have a great day