Thanks.
I'm not expecting a great UX departure from KLP but we'll see what happens.
On the other things, I've looked at a few things. I'm using Nova Launcher, have tried Chameleon Launcher which looked interesting but isn't ready yet.
I've never been happy with live wallpaper, even on the N4 I find that it causes some slowdown and kills the experience for me. Plus I like my Newcastle United pictures!
Widgets - any recommendations? I'm struggling to find anything really useful. I have APW, quite like the Google Now widget, using Google Keep, Clock is sorted, Power Toggles is on, one screen of pictures of my Son and Wife...