The FCA (Financial Conduct Authority, the UK’s National Competent Authority) have issued a second consultation paper on MiFID II, which can be found here. This section is based on the final version of RTS 21 on position limits and several other documents.
The paper includes sections on the application of the rules around commodity derivatives: Section 2 on page 13 discusses position limits and reporting. The draft handbook updates section incorporates changes to the definition of a financial instrument and venues (starting on page 5 of the handbook section), and a new section on position limits, management and reporting (page 176).
A new draft of RTS 20, the Regulatory Technical Standard on the ancillary activity test, is still awaited from the European Commission.