FFXI & FFXIV are excluded due to the nature of being MMOs- they are, quite literally, impossible to remake (And XIV is getting a graphical update anyway, so it's not like it needs one)
(FFXV & FFXVI are excluded for obvious reasons) (FFXIII/XIII-2/LR are also excluded for similar reasons)
By 'benefit from', I mean that the narrative/characters/world and general story experience would be enhanced due to modern tech/hardware and what they now do with it. For example, FFVII really benefits from the remake since there's a lot of things they can portray more subtly and delicately than they could in the OG (such as Cloud's hallucinations & memory issues and how other's react to it)
(And also for some of the older titles there are things in the writing that may have aged poorly- in a remake they could rework it to be more tasteful)
Sora's family in my own headcanon
FF8 Squall ( Leonhart ) is the older brother. He's the wolf energy of the 4, calm collected and quite stoic, He's married to Zell. Policeman
FF5 Bartz Klauser , The second brother. He has this cheerful almost femenine energy to him. More like a Pomeranian energy.
The Bouncer (Call me old LOL) SION BARZAHD, 3rd brother. Between stoic and charming and quite a troublemaker. Loves fighting on the streets and rumor says he is part of a gang.
AND SORA, The youngest of the 4. Cute little ray of sun !!! Dating Riku or Roxas depending on my mood HAHAHA
Soon to come the Darkness family .... GOSH they all look like different artists drew them and it was me QWQ you can tell i put extra love to bartz <3
Another plug for my Final Fantasy tarot, now fully funded and ready for your preorder . I unearthed some retro gems in my game stash and thought ght it was a good excuse to trot out FF 5 and 6, special guest FF 8.