Well we're listening Boruciarz. First of all as you know we patched it so the BIG monsters won't be as 'big' in the lower spawns. I'd like to say that WE ARE next Server Save patching in a change to Elites. Instead of the original 20x hp, and we moved it to 12 already, we're going to move it 8x HP AND still have a higher exp rate, around 15x, and a higher loot rate. I think this will give less monotony and more reward to the players that choose to tackle it.
As for those other abilities you mentioned. That's Dura. The time of predictable monsters that do the same exact thing every single time is over, at least over here. I hope you give us a chance and see what things are like beyond Rotworms. Panic will be at the door xD