A few things were revealed at last week's CinemaCon. Heyman has discussed that the epilogue will be but a few minutes long as well as it's focus. Check that out HERE.
Also talked about at the Con, were spoilers of the upcoming Pt.2 as well as changes done. To see and read about those, go HERE.
And lastly, that The Deathly Hallows Pt.2 will be the shortest, at just over two hours long.