BlizzCon 2017 saw the announcement of a new Overwatch hero today. Meet Moira. She's a new Support character that has floating orbs, the ability to blink, and more. I assume she will be added to the game in the weeks ahead, but it doesn't seem like there is a clear release date for her just yet.
Moira’s biotic abilities enable her to contribute healing or damage in any crisis. While Biotic Grasp gives Moira short-range options, her Biotic Orbs contribute longer-range, hands-off damage and healing; she can also Fade to escape groups or remain close to allies in need of support. Once she’s charged Coalescence, Moira can save multiple allies from elimination at once or finish off weakened enemies.

BIOTIC GRASP
Using her left hand, Moira expends biotic energy to heal allies in front of her. Her right hand fires a long-range beam weapon that saps enemies’ health, healing Moira and replenishing her biotic energy.

BIOTIC ORB
Moira launches a rebounding biotic sphere; she can choose between a regeneration effect that heals the allies it passes through, or a decay effect that deals damage to enemies.

FADE
Moira quickly teleports a short distance.

COALESCENCE
Moira channels a long-range beam that both heals allies and bypasses barriers to damage her enemies.