JackChalk Since they included a case, I think they skipped releasing an official additional case. The included case is roughly the quality of their previous official cases, maybe a bit worse (more flexible), but in terms of fitting and style, it’s highly comparable to their previous cases.
Plus again: The NP3 has been released three months ago, any official accessories would have been released by now. Since we neither see an official screen protector nor a case, it’s pretty much clear they won’t release any accessories.
They partnered with that weird, expensive case company which creates kind of case/bumper hybrids to release their product for NP3, but that’s it.