#1 - Building in everything from d2stats or the stats sheet from PlugY into the main game would be great. I don't particularly care about miscellaneous stats like deaths or time played that are in other games, but presumably other folks would like to see them.
#2 - A to-do list in game would be good (I keep a spreadsheet for all my different characters), but the randomness of when the trophy is going to drop is half the point for me. And I especially don't think we need more stats inflation at endgame - anyone who's playing the game that much already knows what they're doing and doesn't need it made easier!
#4 - Yes. Nice quality of life improvement, I like it.
#5 - Little extra quality of life, sure, why not.
#6 - I much prefer that they stay in the top of my stash. I'd prefer to see shrines stack without dealing with vessels, and then folks can just put them wherever they want to.
Honestly, though, all I want is like 10 shared stash tabs. It's hard to organize the way I want to with the offline tools.