I have the Note 3 and love it. My wife's note 2 is on the fritz and she is due for an upgrade anyway. The note 4 isn't even going to be released until 10/17/14 (from what I've read). I know the note 4 has a better screen and upgraded processor but is it lights ahead of the Note 3? The size appears the same at 5.7".
I own a t889 and I am using DN3 which is the Note 3 Rom for Note 2, they do have the latest DN4. I am wondering is there any Note 4 Rom for Note 3 in this forum. I tried searching but they turned out to be futile most of them being S5 themed. I love the onscreen floating keys and resize, multi window features in Note 4 which I would personally love to get in Note 3.