Well FF is a different case though, it is very much THE biggest JRPG in gaming and historically each entry usually is differnet from the last.  You're talking about a trio of games with set themes and battle system and another different series sharing some themese and entirely different battle system.  And FFXV is the only mainline FF to have a battle system seemingly so different from the main series, and that's partially due to it originally being a spin-off.  Though, haha Xenosaga was supposed to be a FF game iirc.

People can already get the :"Xeno experience" on a Wii U though as it's backwards compataible.  And they acan aready get a different "Xeno experience" on a PS2.  I don't see the point of getting a complete "Xeno experience" on one system. As in justify the costs and effort it would involve.  Besides, the "Xeno Experience" would somehow have to include the DS games.

They already have a good working relationship with Namco Bandai with Xeno collection.  THey have collaborated many times in the past and even nnow.  they are cuurently working on one of  Nintendo's most prominent franchises, Smash bros and previously MK8(or so I heard, nvm just checked the wiki, they actually helped).

"Bandai wants to make Xenosaga, everyone wins."

One guy from Bandai Namco wants to make the games.  Bandai Namco just wants to make money.

"Maybe Monolith wants another crack at it. It is their game after all."

Maybe, I haven't heard anything from them about it, and looking at how the guy behind the series talks, it doesn't seem like he wants to revisit old games.  He seems to want to continually outdo and build on what was before.  This is what I get from the interviews anyway.  He doesn't even think the original Xenoblade is all that great.

Outside all of that though, what benefits would the game serve for the gamepad?  Because at this point, it makes more sense for Bandai Namco to put their other series on Wii U, Baten kaitos.  It was on the GC, would benefit from Gamepad integration, and since the Wii U has some GC roots, I don't think the HD remake would be that taxing, and the studio is already with them.

It hasn't even been announced so why even announce what platforms he would want them on?  Even though it goes without saying that every developer wants as much gamers to play their game as possible, ie on every platform.

Because he wants gamers support. There are going to be people who don't want a PS4, as well as people who don't want a Wii U who are going to support this fan movement just to be told to go buy the console they will be releasing it on. This is going to piss people off. 

First you said it was dumb for him not to say which platforms he wants to release it on, now your saying if he does say which platforms he's gonna piss some people off that he needs to support him...your changing your points.  People are gonna be pissed off anyway, why piss them off before he has the support he needs?

Anyway this whole thing is moot because as I said a developer would obviously want as many gamers to play his game as possible, ie on every platform.

Ideally it should be on both. This is like asking whether a child should live with their mother or with their father. You better bet your ass there are Xenosaga fans who haven't played Xenoblade, hell reminding everyone on PS4 that this series exists could actually be good for Nintendo.

If Namco involves Monolith Soft as Harada says he wants to, the game would have to be Wii U exclusive. For that reason I fully expect them not to bring Monolith into the equation, which I think would be best. I also expect it to skip Wii U if it is made at all, which I think would be mind-numbingly stupid.

Friendly reminder here that this series was canned due to lack of interest on PS platforms, while the Nintendo audience embraced it and are being rewarded with a massive next-gen sequel.

No I'm not. I'm saying if he was transparent about what platform he wanted to put the series on from the beginning, the fans who want that game on the system could support it and the fans that didn't wouldn't be waisting their time. NOT being up front about what systems he wants it on is going to piss people off. 

Who cares if it pisses people off after?  All that matters is he gets the support he needs now.