The advance screening was also today. Some staff from codelyoko.fr attended, and they released a few bits of information given to them by Moonscoop:
The opening at the beginning of the episodes has been completely changed, music included (so it won't be Un Monde Sans Danger).
At the moment, in the first two episodes of the series, there hasn't been an appearance of Laura, nor Sissi. Nonetheless, the existence of Sissi has been confirmed. On the other hand, no Herve or Nicolas.
The titles of the first two episodes are: XANA 2.0 and Cortex.
As the trailers and title have indicated, the Skid has been reprogrammed in episode two and the Cortex discovered in doing so.
The costume and design modifications appear in the first episode, without any explanation. In the same manner, the disappearance of two sectors is confirmed, visibly simply expected by the supercomputer being left off for too long.
Kiwi won't be in the series but the explanation as to why will come later in the season.
Code Lyoko Evolution will be aired in two parts, with a pause between two parts of the season.
It takes place at the beginning of the next school year after season 4.
Well, some of that doesn't make sense (like the sectors disappearing) but I guess that's the decision they made and it's a little late to change anything now. The two remaining sectors of course are the desert and mountains.