neuf means new as in 'brand new' - Pont Neuf is the new bridge, not bridge No. 9
I found an informative comment in this thread.
I also found information in this page. Look at No.6. To sum it up, indefinite pronouns require de when they are followed by modifiers.
It probably should be acceptable, however those sentences have a subtle difference in emphasis.
- He has some new thing
- He has something new
In the first sentence the emphasis is on the 'thing', the strangeness/incomprehensibility of it. In the second it is on the newness of the object, that he has acquired a new possession.
who can tell please: the difference between: neuve/neuf / nouveau ?? (Thanks in advance)
Something brand new should be accepted as neuf, according you all you French experts means brand new and nouveau means new to you but not necessarily brand new!