I would like to see some sort of Garlean inspired job. Taking Crosair into account, they could just make it a full-on sniper and be the phys-ranged equivalent to BLM but with large garlean tech rifles. Instead of Ley Lines you go Prone to increase damage and crit chance. They could even add new mechanics like using multiple ogcds to power up the next shot so it feels like you need to make the most of your shots while prone, just like a sniper. Would be a nice welcome pace to see slower more methodical dps like we used to have back in ARR/HW instead of the spammy spam that we have now.