Here are a few upcoming changes you'll see in the next beta build:
-- Improved Drain Soul and Dark Pact have been cut / redesigned.
-- Aftermath is a 100% chance to proc with 2 points. That is just a tooltip error.
-- Soul Fire’s base cast time is reduced to 4 sec, and Emberstorm takes it down to 3 sec.
-- Demonic Aegis back to 15/30%.
-- Drain Life will do more competitive damage.
Q u o t e:
And what about everlasting affliction is it meant to be only 60% chance to renew corruption or is it a bug ?
No, it's 100% with 3 ranks. Otherwise it wouldn't be very everlasting. Probably a tooltip error from the conversion from 5 to 3 ranks.