Indeed, there seems to be some extreme overreactions here. This is a SAMPLING of mage abilities, not the entire list.
So far all we can take away from this is they split elemental from BG2 into Fire and Cold trees, nothing more. We do not know how many other trees there may be.
Why, reacting this way is like seeing the Warrior preview and screaming bloody murder at Sword and Shield no longer being an option, and the complete lack of Vanguard abilities! 
I'm confident there's more trees to choose from. These aren't even trees - just powers.
Not to mention we have no idea what trees the Specializations open up.
@Itkovian: Semi-Confirmed rumor! Neither swords nor shields are available in DA:I.
I am sorry but you are not correct.
This image is the final confirmation we needed about which were the skill trees. We already knew 2 of them, we already knew they were going to be 4 skill trees, and we already knew aproximately 90% of the basic-tree spells, which are an estimated total of 20. If you do not agree with this, or do not believe me, just read the "skill trees" thread, where all the information, references, and prove is posted.
This new image is just a confirmation of everything posted there, and the new information is just that the tree where lightning bolt, static cage and chain lightning spells are included, is going to be classified as a "lightning" tree of some sort, due to the icon the skill tree has. This is the only new part.
If you want the entire list of spells, go to that thread. There are only 2 or 3 spells missing.