Here's a more comprehensive list of hardfork items, together with their current state, estimated work size, and approval status. I'm open to suggestions regarding the size, it's just a rough guesstimate.
| Issue | PR | Name | BSIP | State | Size | Approved | Remarks |
| 216 | 340 | Process to Reset a SmartCoin after a Blackswan Event | 0018 | Review | L | 1.14.56 | |
| 154 | | Letting settlement_price expire would allow to reuse symbols for prediction markets | 0017 | Planned | L | N | |
| 23386 | Issue: Early withdrawal claims | | Review | S | N | |
| 143 | 348 | Require voted entities to exist | | Review | S | N | |
| 338 | | Margin call order fills at price of matching limit_order but not at a price related to itself or settlement_price | | Requested | M | N | |
| 342 | | Rounding issue when matching orders | | Requested | M | N | |
| 343 | | Inconsistent sorting of call orders between matching against a limit order and a force settle order | | Requested | M | N | |
| 353 | 369 | Computation of number of committee members is wrong | | Review | S | N | |
| 22 | | [Feature Suggestion] No Fee on User Side with Whitelisted UIA | | Requested | S/M | N | |
| 59 | | Audit charging of per-kilobyte fees | | Requested | L | N | |
| 169 | | Asset can be registered with null core exchange rate, but not updated | | Requested | S | N | |
| 138 | | [Proposal Improvements] Add fee paying account to `available_active_approvals` | | Requested | ? | N | |
| 173 | | Code review of [BSIP10] percentage based transfer fee | 0010 | Review | L | 1.14.29 | |
| 186 | 612 * | Implement simple rate limited free transaction feature | | Review | L | N? | https://bitsharestalk.org/index.php/topic,21462.30.html |
| 267 | | implement rotating standby witnesses | | Requested | M? | N | |
| 170 | | new_options should be optional in asset_update_operation | | Requested | M? | N | |
| 199 | | [Request] Require owner key for change of asset-issuer | | Requested | M | N | |
| 197 | | Account_update_operation requires both owner authorities and active authorities when owner presents | | Requested | S | N | |
| 269 | | Fix recursive account permissions | | Requested | S | N | |
| 202 | | Hard fork request: correct wrong voting proxy settings | | Requested | S | N | |
| 125 | | When signing a block that updates the signing witness's signing key, use correct signing key | | Requested | S | N | |
| 210 | | Authorities on custom_operation are not checked correctly | | Review | ? | N | See https://github.com/FollowMyVote/graphene/commit/373700e717b2353eb485316f4bc93ab0d2468e05 |
| 188 | | New OP for issuer to reclaim fee pool funds | | Requested | M | N | |
| 146 | | proposal_delete_operation issues | | Requested | S | N | |
| 214 | | Unable to propose a proposal with an `approve_proposal` operation | | Requested | S | N | |
| | Introducing expiring votes for Witnesses, Committie members & Proxies within the Bitshares network | 0022 | Discussion | M? | N | |
I was surprised to find that we have quite a few things in the queue that are already implemented. Apparently some things have been more or less forgotten and need to be updated and reviewed in-depth. We should focus on those, IMO, and possibly add a few of the 'S' items as well.
Edit 2017-08-31: PR #23 has been superceded by #386