Is FFXIV hinting Berserker, Necromancer, and Chemist next expansion?

[ADVSS]

Well as for a healer, there is that spell Reverse from FF12 as well as the whole "arcane" magic school, i think "Bubble" was in it as well(could be wrong its been ages since i played that game) but that would be an interesting element of healing that sorta does the same as shielding and mega healing, but in a different way, so alright ill dig if we're going to try a necro-type healer. Could focus on Umbral aspect of aether. So im guessing we would be eliminating the horde fights for me gimmick in place of something more accessible and managable. What would be their main schtick though? No job specific ability, or yes one?

Ill just list off the top of my head spells and abilities that could thematically fit that ive yet to see implemented that would at least put some iconism into this specific "dark" themed healer, some taken from time mage, or other jobs in the past

Age, Exit/Warp(probably enmity manipulating skill), Mute, Blink/Vanish(could work like TBN or the original rogues shade shift),Oil, Bubble, Reverse, XZone/Rub. Life3/AutoLife, Wall, Fast/Temper, Fear, Reflect if different from wall, Float(already in some raids), Toad/Mini/Pig(in the game as well) Teleport movement ability. Weak/Burn

Most of these could be debuffs/curses and buffs, Idk if The Dept of Healers would want a buffer/debuffer since it seems to be covered throughout dps and healers alike, but i guess it "Could" be a niche for a fourth healer.

Even Gunbreaker is pretty iconic, even if its more or less Squall/Seifer the Job.
I guess you could through a Gourmand "soul eating" Job like skill for flavoring, or whatelse really is left?Celes' Runic maybe?