They didn't really add anything new to ffx hd remaster though - they just put the missing content from the international edition that's all.

Remaster tag from what I have seen is mainly visual upgrade with some minor additions such as music being remixed and addition of achievements. Especially going from se's track record with games like kh1.5, kh 2.5 and ffx hd

But that really isn't adding anything though - more of a modification than a new addition/content. 

It's not really a remaster in my eyes... They are just essentially rendering everything at a higher resolution.

Something like Halo: Combat Evolved and Halo 2 Anniversary is a real remaster in my opinion. This is more like a re-release with a few bonuses.

The remastered version allows you to speed up the game in and out of battle without affecting the game clock which makes the Excalibur quest easier.

So... Pokémon and this is it? Pokémon is a Nintendo franchise, as much as it keep releasing people keep buying it, not to say it's the franchise that makes people keep buying their handhelds, not because it's turn based, because it's a monster collection game. Go isn't turn based and is doing wonders, Pokémon is Pokémon.
Look to all other turn based RPGs and as they almost died last gen, they became extremely niche or skipped the gen alltogether like Persona you mentioned, that's now indeed stronger than ever, but Persona numbers weren't even on the same realm as FF to begin with.

Obviously there are people interested in turn based games, I'm one of them, but it's pretty clear action is what most of people want, pretty, pretty clear.

Are you sure? I don't get that at all, action JRPGs are not outshinning turnbased JRPGs in terms of sales. Lets put aside Final Fantasy  (Final Fantasy 13 is most likely going to outsell Final Fantasy 15 at this rate anyway).  Name me a franchise that is an action JRPG that people love and sold well last generation, hell most people would put Ni No Kuni (Sony centric fans) as their number 1 for last generation, Nintendo Fans would obviously put Xenoblade and Xbox Fans Lost Odyssey. Hell Persona is doing wonders in COMG and Final Fantasy XV is doing awful.

Dragon Quest IX outshinned previous entries and XI most likely will (since it has two versions). The demand for turn base is the same as it always was, the only problem is, some companies forget how to write and deliever setting, plot and characters that people want. 

I don't mean dark souls either, it has to be overtly Japanese, not western influenced.

Well, outside of the biggest names, I don't think that's correct. Keep in mind that people consider the Souls series that ideal Action JRPG. Those have been big successes and outdo everything that isn't DQ and FF. People argue that those sell based on brand, not gameplay.

Dark Souls and Ni No Kuni had similar successes, given the first Ni No Kuni was split into two like DQXI. Persona might also have similar success. I mean we have to put aside Dragon Quest and Pokemon, to even make similarities. I am also ignoring the rise of Yokai Watch (given this has fallen from grace and is this generation, still a million seller). 

The demand for turn based is still around and I say it isn't lower than then Action JRPG. I don't think it went anywhere, however it would be heightened if actual great games were made, instead of whatever Square is doing with Final Fantasy.