High rune drop rate was seriously under what it needed to be. If anything, they're catering to the people by getting rid of dupers, rather than make it accessible to the general public. They know new people won't play this game unless they're about to play Diablo III.
Respec means exactly what you think it means: you can now respend your skill points, in case you screwed up or want to change your character type.
Unfortunately, the Paladin is still overpowered against something, like, 2 enemies. As for Lite Sorceresses, bleh.
Also TPPK still not fixed.
Hey, they fixed FE monsters! Now I won't take 1 million damage 10 times from an FE in NM anymore!
They removed Uber leveling from Tristram. Man, the Forum Gold that could be spent on this...
Sweet, we can mark which public games are which now. Doesn't help, though, since they still didn't fix TPPK which means HC players still aren't going to play publics.
EDIT: I'm playing right now. You need to make a new Account on the test realm. I'm using Tyalieva, making a Summonancer and an Enchantress when I can. Softcore. No point in playing HC on a test run.