IBM has officially announced that it will support IBM Domino/Notes 9.0.1 until September 2021.
Although the announcement does not specifically say so, IBM was communicating it as AT LEAST until 2021. Which is good news, regardless if your plan is to migrate off the platform or to stay there.
FixPack 7 for 9.0.1 is now in Stage 4: Gold Build and list of fixes now has 81 entries (well those two regarding Java 6 are technically the same change, so 80). Still no sign of Java 8 being added in FP7 and I won’t expect it to happen until FP8.