Progress in the last 12 months

New functionality
- added transaction durability option, per discussion at TPAC 2019 Define flush-to-disk guarantees and control #50
  - Supported in Chrome and Edge
Other normative changes
- remove File lastModifiedDate references, per discussion at TPAC 2019 lastModifiedDate on File is not a thing #215
- specify that read-only transactions can run in parallel but block a later read/write transaction from starting, and the read/write transactions similarly block later read/write and read-only transactions, matching implementations Disallow starting readwrite transactions while readonly transactions are running? #253
- disallow proxies as keys, matching implementations. Array proxies as keys? #309
- make transactions inactive during the value clone process, to prevent side effects (e.g. getters) from re-entering algorithms.
Spec quality
- Alignment with Infra and WebIDL syntax, term and convention updates.
- Added Accessibility Concerns section Add accessibility section #327

Pending changes:

New functionality
- (has PR) IDBObjectStore putAll() per TPAC 2019 discussion - Chrome has implementation experience, but no data ready to share yet.
- (has PR) Manual commit per TPAC 2019 discussion - no implementation plans I'm aware of.
- (has PR) IDBObjectStore / IDBIndex getAllEntries() per TPAC 2019 discussion -
  no implementation plans I'm aware of.
- (has PR) IDBCursor close() per TPAC 2019 discussion - no implementation plans I'm aware of.
Spec quality
- (has PR) Define Indexed DB as a storage endpoint, per Storage, and integrate with "bottles" terms, etc.

Moving to CR

Seems premature:

Goals for V3 in charter state "The third edition adds new capabilities and improves developer ergonomics by using promises." KV-Storage as a Promise-based layer on top of Indexed DB has stalled. An alternative is to push on low-level support in Indexed DB (example) and encourage libraries to implement Promise support.
Overall, new functionality since V2 is limited: see https://w3c.github.io/IndexedDB/#revision-history
- databases() method API to enumerate databases #31, commit() method Proposal: Add explicit IDBTransaction.commit() (was: add "writeonly" mode) #234, request attribute cursor.request #255, durability option Define flush-to-disk guarantees and control #50

How to unblock:

IMHO, at least one more "big" feature is needed (e.g. one of the above PRs) to justify the effort
Need further implementation experience
Any other interested editors? Both current editors are from Chromium-based browsers.
Need a WD published at least.