I think it's going to be good.
If you think about it, Final Fantasy Origins ruined FF 1 to a degree as well. They allowed you to change the options so that Life, Life2, and Gold Needles could be used in battle. They also allowed an option for a "run" button, and easy mode, in which everything cost less, characters levelled up faster, and mages got WAY more MP than they EVER had in the original.
Yes, these were all options, not requirements, but most people are going to take the easier route, which is NOT how FF 1 was meant to be played.
And 2...well, I HATE 2. The "No XP/no levels" system was HORRENDOUS. I don't believe I'll EVER play FF2 again after playing it for about thirty minutes the first time.
New bosses are ALWAYS a nice addition, yo. Besides, maybe I'll actually beat FF 1 this time. I have it in origins, but the loading times...
The option to save anywhere will also be nice. I'm tired of having to go all the way through the Temple of Fiends...time after time...