In case anyone missed the bombshell just dropped during the stream (link - https://www.twitch.tv/evolvegame) the support adaption was revealed: Battle-Cabot. This isn’t a comprehensive breakdown but rather a quick summary.
Photon Cannon - His railgun is now rapid fire with 6 shots. The drawback is that it cannot shoot through walls.
Solar Blast - This works akin to Hank’s orbital, but faster and more frequent. You mark your target and a large missile/bomb flies down from the heavens to wreak solar havoc on the monster. It deals moderate damage and has a low cooldown, so expect to use it often.
Orbital Concealment - Works like dust-tag: you aim it and it creates a large bubble. The difference? Instead of highlighting the monster it now cloaks hunters and provides a movement speed buff. Monsters will be able to tell where this bubble is.
Finally his shieldburst is a skillshot. You aim and fire something that resembles a banshee missile, but instead of it bringing electrical-death it provides shield-y goodness.
(feel free to add to this if you have more info etc)