I am disappointed to see that Vintage mode hasn't really been touched at all for this edition. It's what is holding myself (and likely others) back from switching away from Vim. Unfortunately, development of Vintage mode seems to have stopped (the repository hasn't changed for about six months).
What's noticeably missing from Vintage for you? I'm also Vim user who has considered jumping to Sublime several times, but never quite managed to achieve escape velocity. (Though I hadn't realised until now that the Vintage package is an open repository)
Some random things off the top of my head:
* No block cursor (the block cursor plugin doesn't really work)
* When you switch between files, it keeps jumping back to insert mode, but you don't immediately notice (especially since there is no block cursor). There's a setting, but I've never been able to make it work.
* Autocomplete and the dot command don't work together
* Macros are flakey
* Visual mode and the dot command don't work well together
Otherwise, here's the issue page: https://github.com/sublimehq/Vintage/issues?state=open
About 25% of those issues annoy me personally. There are a lot of commands that leave the cursor one off, which messes with my muscle memory.