As far as I'm aware, they've tried to make Chemist 3 different times now. First was for HW, and they salvaged their work to make AST and MCH. Then was EW, and they salvaged their work to make SGE. Third, and finally, was the Phantom Job in Occult Crescent, which amounts to 'Benediction but it's GCD' and 'Revive, but it's a 5s CD weaponskill'. It doesn't even 'Mix' anything, the core 'skill' of the Chemist isn't even present in the kit. If the creativity of the PJ Chemist is what they have to offer even when completely unrestrained by balance (since it's in a Field OP zone), then I have little to no hope for an actual Chemist.
On topic, it's a Tank and PhysRanged, I'd expect. For Tank... depends where exactly we're going. I can see Viking, for example, as a Dual 1h Axes Tank that mixes some Thunder Magic into their kit, IF we go to Aerslant (home of the Sea Wolf Roegadyn). If not, I dunno, maybe Mystic Knight
For PhysRanged, I'd like to see them stop saying 'well it's very difficult...' and actually work out how to make a Whip look good in animations. Failing that, I guess a second MCH-style, heavily personal-damage focused Job with a Crossbow or a Hand Cannon could work. Then they can have a pseudo-split of MCH/New vs BRD/DNC, like how we have WHM/SGE vs SCH/AST for Healers
Side note, DT should have had Blue Mage be reworked to be a true Job in the Caster role (with a heavy focus on utility/RDPS, making it the 'Dancer' of the Caster role). How on earth did we go to the land that Blue Mages originate from, and yet the only reference I've ran into was the Fisher Role quests where it's played off as a joke ('haha this BLU only learns Flying Sardine style spells isn't it funny guys'). Another victim of SE's lack of creativity, just like Chemist I fear
