I hate to sound like I am afraid of change, or generally counter intuitive. However, with that said, I hate what they've done to new jungle. I have not been around super long, but implementing this all at once throws everything I liked about Jungle out the window. I liked the way it was, and think it's really annoying that new Summoner's Rift Update was supposed to help current gameplay, not change it. The way it is now, I used to play a lot of Jungle, and I won't be. You've made it so Counter Jungling is even worse. If you get countered, you might as well AFK unless you play a stupid easy champ that's no fun. The way it was worked. Don't fix something that isn't broken. You turned Jungle into a super advanced, overly detailed mess. At this rate, I might as well stop playing League. I like change, but it needs to be done in increments. You shouldn't just take a bunch of ideas and vomit them all over your Playerbase.
There are soo many things wrong I don't know where to start. First off, making it so we can only buy Jungle items with Smite is not needed. It takes away more freedom from the Player and boxes you in to do what is "Meant" to be done. Not the Smiteless Jungle was ever huge for me, but taking away my ability to chose what I want to do hurts over all strategy. You're railroading Players into Meta, or what's accepted.
Next, making small camps more than Gold and XP, then using that as an excuse to double respawns. Terrible. It was hard enough when you can't gank due to whatever reason, now, there's not point to stay in the match if your team can't set up ganks. I know it's a team effort, but I don't want to be penalized as a Jungle Main simply because my Random Team-mates decide they want to keep pushed and not let me gank. Personally, I don't think I should have to stop and wonder: "What would be most useful to smite? Maybe this, so I can have vision, or perhaps I should smite this for a buff..." There's no reason to complicate small camps. What next? Does CSing in lane have special effects based on when you do it and what spot in lane the minions die?
This, I have to make note of because it should be said. Making it so if you die to Jungle camps you don' lose buffs? Come on, that is just silly. If you die to a Jungle Camp, then you messed up and shouldn't keep your buffs. I assume this was done because you made even small camps harder for reasons which I don't know for sure.
Over all, this decision was bad, and it needs to be rethought entirely. Stop shoving Junglers out of their Jungle and into fights, when you force players to do something, you kill diversity even more. Riot, the worst part about League to me and loads of others, is that everyone does one type of thing and corners you into doing certain things to counter that. Stop making it so I have to play specific champions to do well.