With the Crash Bandicoot N. Sane Trilogy just two days away from release, a Hungarian retailer called SuperGamer has listed an Xbox One version of the game for pre-order with a December 8th, 2017 date. This is by no means a confirmation, so take the listing with a grain of salt. That said, it's widely believed, though not confirmed that the N. Sane Trilogy's PS4 exclusivity is timed.
Here's a screenshot of the listing:
Back in February, PlayStation Ireland made a clarification on a social media post saying that the game would be "coming to PlayStation 4 and PS4 Pro first." There was also a potential slip from a booth rep at PAX East 2017 who said that the game would eventually come to PC.
There's reason to believe the listing could be real, as its supposed release date also happens to fall on a Friday, which the PS4 version is doing this week. The week of the 8th is also about the last possible week any games of relevance have a shot at releasing during in time for the holiday season, and would push the PS4's exclusivity at just under six months. If Activision is concerned about making a profit during the 2017 calendar year, that's about the last possible moment to do so.
In the meantime, Crash Bandicoot N. Sane Trilogy releases this Friday, June 30th for PS4.
Source: [SuperGamer via Reddit]