Relay Bolt/Stun - The retake potential for the stuns is really high. On Breeze specifically there are so many lineups for back B site, in several pockets of A, and really just anywhere else you may need a stun. On Ascent there is market/stairs stun. There is a ton of early pressure stuns on Fracture.
Fast Lane/Wall - Creates space not only for Neon, but also any other agent who might run in with her. This allows for that Flex player who plays Skye or Kay/O to aggressively take site with your duelists. Where Jetts smoke and dash breaks crosshair placements and creates pressure, Neon can do this as well, but over a greater area and with her teammates. The wall also naturally combos with Kay/O, Skye, Reyna, and Sova. The same reason that these agents combo well with Viper, they can combo well with Neon. It allows for agent to create the angles and peeks they want. Plus a well placed dart can allow for teams to split up defenders and take them out.
High Gear/Sprint - Creates really weird and awkward timings for both attackers and defenders. On maps like Haven, Breeze, and Fracture, I can see her sprint being used on defense to help other agents lock down a site. Same with on attack, she can help sell a fake on one site and quickly move to the other.
Overdrive/Ult - Now this is her biggest weakness. It is not the same as Jett knives or Chamber Op because it is easily traded. There isn't a "one hit kill" like with those ults, but I think this can be worked around with again her stun and other agents abilities.
Chamber being in the meta...this allows for other duelists to shine because the operator role can now be given to a different agent. Jett isn't the sole op'er anymore.
Would love to hear other people's thoughts, criticisms, and ideas. I am just really excited about this new Act having a lot of potential to shake up old metas and give relevance to new and old agents.