True innovation is pretty much impossible when it comes to a game like this - at least on a large scale. Asking for something absolutly new and breathtaking seems a bit naive to me - which is why it is so, so bad that they continue to claim that Eureka would be excatly that.
This game has certain limits in which to work - the way our characters move, the limits of the server, the stuff thats already in the game... all of that is hindering this to be something absolutly new.
And personally I'm even okay with that - after all I'm playing this game because I like playing this game.
But innovation can happen on other scales - they could put things together in a way they've never been put together before. And for that its a good idea to look at other games.
The same for giving feedback here - I'm not sure if they're gonna read it or get told about it, but its definetly more helpful to hear people say "Hey, there was this piece of content that I liked - maybe something like that could work here?" instead of just "Give me something I've never done before!"
There are good ideas in this game (for example: I'd like to see daily quests in Eureka or something like the Hunting Bills, a list of monsters you're supposed to hunt in order to get some sort of bonus), aswell as in other games - the whole "defend the city"-thing sounds intresting to me, so why not work with that?
Looking for inspiration and things people like in other games is less risky than true innovation, thats true - but if they do it right, I dont mind them playing it safe.
Besides... they claimed that both Diadem and Eureka were completly new and innovative content for them - and I'm sorry, if thats their idea of "new and innovative content", I'd rather have them re-do something from FFXI.
I dont want to see this game turned into FFXI - if someone wants to play that, they can play that already. But if there are good gamedesign ideas in that game, why shouldnt they take and tweak them to work with FFXIV? Seriously, thats how games are made in the first place. The whole FF-series started because they wanted to make a game like Dragon Quest!