Context to why Rangers Trailblazer is gone season 6?
Obviously it was a great smite choice, helped you clear faster and safely but also had a downside of only being a farming smite compared to its offensive counterparts with chilling/challenging smite. I really like the new warding jungle item, but it only really favors AD champions as the lifesteal is not good for tanks or AP junglers. The majority of S4 jungle and preseason S5 jungle was filled with early game AD junglers for a good reason. Cinderhulk and Runeglaive have been great tools for tank/ap junglers to shine but unless your kit is 100% built for jungling (Elise, Nunu) losing trailblazer is going to create a lack of jungle diversity yet again. And Tank/Ap junglers aside Trailblazer generally served as a "noob friendly" item to get people used to the jungle or to give people a safe option other than have fast clears and amazing early ganks or lose.