According to French gaming site Gameblog, you can expect the PS4 Neo's first details at an event in New York on September 7. The reason for the location is that it's the same city where Sony made the first public showcase of the PS4 and September 7 gives the company enough time to possibly pre-empt a supposed Nintendo NX announcement that Gameblog claims is on September 12.
The news of a September 7 reveal was corroborated by Vice's gaming section.
"One source, who chose to remain anonymous, described the upcoming event as a "technical showcase." As recently as a few weeks ago, Sony was still nailing down what would actually be shown," a post on Vice reads.
Assuming this is true, it does tie in with what we've heard from publishers in the past, that their upcoming releases from October onwards have to support the PS4 Neo.
This isn't the first time we're hearing of a September reveal. The Wall Street Journal reported this back in June. Macquarie Securities analyst Damian Thong said Sony might also introduce a smaller PS4 along with the PS4 Neo. Thong believes they would be revealed at a game show in September. For its part Sony declined to comment.
As per a presentation leaked earlier in the year, the PS4 Neo uses the same "Jaguar" cores as the original sporting 8 cores at 2.1GHz making it 1.3x faster than the PS4. It uses an enhanced version the original PS4's GPU as well promising 36 compute units running at 911MHz translating into a 2.3x improvement in terms of teraflops.
The PS4 Neo also has the same 8GB GDDR5 memory albeit with a higher bandwidth of 218 gigabits per second versus the original's 174 gigabits per second. Surprisingly the hard drive configuration remains the same, so expect it in 500GB and 1TB variants.