Hopefully we can get a definite date. Under our Grant number, I did see a section called EPO 5.1 but it has no software under it yet. This must mean that it is close to being released.
We are still on ePO 4.6 and are hoping that the upgrade patch to EPO 5,1 is smooth and has a migration tool like 5.0x
Supposedly 5.1 will fix a bug where you can only have 1 connected LDAP server, and my agency needs to keep separate domains.