There is no guarantee it will be fixed in 4.20, there is a lot of factors that go into that and there is no way to say for sure at this point.
As for staying up to date, the best way is to monitor the status of the public tracking link I provided above. As soon as the status changes on the internal JIRA, it will update there.
If you fix the issue on your end and would like to submit it as a pull request, please do so.
https://wiki.unrealengine.com/Git_Pull_Requests
Thanks,
-TJ