Swifthawk Agents - Not all competitive lists are from new releases
Swifthawk Agents and the battalion scroll Guardians of Dawnspire provide a VERY mobile and shooty force that can compete on the very similarly to how old school woods elves did in 8th edition WHFB. They can move in, shoot barages of arrows, wither down your opponents forces to where your close combat units can stand a better chance to measure up, and get out of range for counterattack or even counter shooting. They can move to objectives mid-late game and potentially steal scenarios. Not extremely resilient, but with movement, shooting and great volume in ranged attacks, they can make up for their deficiencies and compete with top tier lists. See the video here. Let me know your thoughts.