Any% runs are fun and all, but I've been wondering.

How feasible would you say a Platinum% run for this game is, and if so, how long do you think it'll be until we have people doing them?

Feasible is it imo 100%. A lot of the trophies are doable while doing an any% run and some trophies can be connected with other trophies (The fisher quests for example would be good as to get fishing higher aswell and some stuff for later fishing).

The longest trophies will probably be Adamantoise, Fishing and Survival (these will end up doing repetitive stuff). The rest is fairly easy managable.

About the length, good questions as I currently have not really an idea how long it could take. I would guess at possibly around 10 hours with the option of possibly going into the direction of 12 - 13 hours. I dont think it will take much longer.

Adamantoise took me 30mins underlevel with cheap strat, i didnt used magic i was around lv 35.. So i guess it's possible to go faster but it is boring and really buggy... I can't say how many time i ended up inside the monster body while doing the attacks or noctis just went full retard refusing to attack.

I thought Survival was longer it took me long time to get it in my casual playthrough 13h seem quick, does plat% requires all the king's weapons ? The storyline quests are cool tho' you're not forced to do all the sidequests, only 80.

One Trophy is all 13 Royal Arms yes. And yes, I think this one is actually quite a quick one and would change the route possibly because you maybe want some level ups on the way, so stuff like Adamantoise isnt a problem. The thing about the Platinum in this game is, that it doesnt really require many hard bosses which will make this a short trip and more of a A to B thing.