A rather subjective question but one of the biggest complaints I saw was the opinion it's a rehash of elements from the original trilogy, more specifically it's essentially a remake of A New Hope.
No, of course not.
The Force Awakens
Alan Dean Foster
Han Solo dies
Adam Driver.
Lucas didn't make The Force Awakens as your question implies but No, Lucas is not making anymore Star Wars movies.
Estimated 245 million dollars.
Supreme Leader Snoke
he is a bb unit
$245 to $306 million
We don't know yet. It's a mystery.
Only for a few seconds at the end of the film.