Um.... YES!!!
I can see why it took so long for this to come out. You need to hire a team of animators to help you. These defenitely keep getting better and better, and this is no exception, but, well, I dunno, I think in terms of the overall feel of the cartoon, this was different. If you continue to use the atmosphere of this one in your future ones, I think it'll take some getting used to. I think all of us would have loved to see Hank using piano wire again. The idea of Hank turned into a ZOMBIE of all things was a little shocking, as was the idea of the clown in a conductor's hat or Jebus only having three seconds in the entire movie. The tourists getting smashed was a delightful return to the whimsy of "Marshmellow Madness," if only a short one. The scene transitions were a little annoying, and the backround music seemed a little too tame. It was definitely different.
However, I would like to stress that the trap which is the bane of more good series than any other is reluctance to experiment. If you have not the courage to move into new ways of doing things, the series will go stale and predictable, and no one wants THAT.
So on the whole, keep us on our toes. Even deterioration is better than stagnation, and you definately did not deteriorate or stagnate one bit. This is the moment when you can no longer afford to do more of the same. Grow, develop, and try to spice things up. Add another protagonist, or give us prequel with a startling insight into how Hank became awesome. And if anyone tells you to be wary of experimentation, tell him I said to blow it out his ear.