[ultraman zoffy]

@Dr Kain -

I think you need to clarify your question a bit as to whether you're asking about comic based figures or movie based figures. Movie based, I doubt anything X-Men or FF related will come out in Legends. As far as comic based figures, X-Men is more likely than FF; at last year's SDCC, Hasbro's reps stated that they'd "like to push" for X-Men Legends waves when Age of Apocalypse hits, but implied that they would be comic based (possibly including the missing Phoenix 5 Cyke).
How important/ideal a release of the X-Men and FF characters are compared to the characters you mentioned means very little when the whole issue is a licensing/legal problem.