I think that they will just be presenting the same data that was revealed earlier (I think Dec 2014). This will be an opportunity to see a lot more data and perhaps to see the graphics and even interact.
I'm not familiar with the EASL link you provided, but I wonder it it could be akin to a phone in conference call. This presentation could be in real time viewable. IF so...., like a conference call, you can't attend until the presentation starts.
It may be a different result, trying to merely find and read the abstract.
No matter; we will be reading about it fairly soon this upcoming week. But in this case I think a lot of what will be presented has already been in the ACHN press releases.