Jose, no the plans for AmigaOS5 have remained largely the same. But it will still take alot of time to realize.
AmigaOS4 can be realized much sooner but for PPC only, offering a much more modern solution meanwhile.
Sadly this is hard to understand for most ordinary users, therefor I personally would have preferred for Amiga Inc to keep quiet about AmigaOS5 towards outsiders for now. (But I should add that Bill is not entirely to blame.)