Syndra, the Dark Sovereign, is the next League of Legends champion to be released in the next patch, barring any additional testing that might be required before the due date. From the early build, it looks like Riot has her tech fully implemented, but is busy balancing the numbers to prevent another Zyra incident. For the current numbers (which will probably change by release) check here.
Her abilities are fairly interesting:
Q creates a sphere at a target location. The sphere appears at the location, dealing damage in an AoE, and remains in that position for a few seconds. Currently, it's possible to have 3 spheres out at a time from her Q.
W is a dual activation ability changing after the first time you press it. It allows Syndra to pick up a sphere or minion. The sphere or minion will be dragged slightly behind Syndra. Upon activating the ability a second time, she can throw the minion or sphere to a target location to deal damage and Slow in an AoE.
E deals damage in a cone and pushes enemies hit away a certain distance based upon how close they are to Syndra. It also launches any spheres, which will deal additional magic damage and stun enemies hit.
R generates three spheres and picks up any additional spheres in the area, then launches them at a target opponent for massive single target damage. Currently, the maximum damage of this ability is at Veigar levels of damage, but it does require a setting up 3 spheres and using R before the spheres disappear.
Her passive increases the power of all her other abilities when they reach their rank 5. Her Q has an increase in damage on champions, her W becomes an AoE Knock Up and Slow, her E conal area increases in size. Her R does not currently benefit from her passive.
Syndra has a play style similar to Orianna. Her ability to zone is her strong point in lane, and the amount of set up for her ultimate ensures that her most effective usage will be in poke comps. Poke comps revolve around laying siege to an opponent and whittling down their HP from out of range of the opponent's ability to retaliate. The amount of range she can achieve with her Q, and her Q and E combination, and the amount of set up required for her R to reach full potential, make her ideal for this strategy.
Check out the Yogscast interview with Paul Bellezza for more information about Syndra, Dominion, and, of course, Poppy.
[Gamescom - Riot Games Interview - Syndra Preview]