Probably best to wait for the full DOT&E report, but note two things:
1 - The Reuters reporter that KB links to has been very F-35-friendly lately, publishing stories that puff the jet's prospects in MidEast (not as long as there's one AIPAC lobbyist left standing, buster) and Asia-Pacific (more accurate to say that Korea and Japan are the high-water mark for the next decade) and uncritically reporting that the -35A cost is the same as the Super Hornet. The leak and the access to Bogdan look like a controlled detonation.
2 - An IOC slip would be a surprise to exactly nobody.
More F-35 Delays Predicted