Slated for release this month, the iPhone SE 2 has apparently been postponed. June or Fall 2020 are now rumoured as likely release windows, but supply chain sources are reporting an indefinite delay for Apple's next budget smartphone. While the iPhone 12 series is supposedly delayed too because of production issues, Apple's recent performance in China may be the cause of the company postponing the release of the iPhone SE 2.
https://www.notebookcheck.net/iPhone-SE-2-Apple-postpones-its-US-399-smartphone-amid-claims-that-production-issues-have-delayed-the-iPhone-12-series.457464.0.html