I personally would love to see the Normal type get more interesting combinations. I really liked Sawsbuck, which drew my attention to the lack of Normal being combined with very many other types. In fact, Normal has only been combined with Flying, Psychic, Water, Grass, and Fighting, which is kind of surprising to me. All of the Pokemon with a Normal/something other than flying type are also particularly interesting to me (despite maybe Bibarel). This makes me hope that the next generation brings more types combined with normal, hopefully resulting in some pretty cool Pokemon design-wise. Some particular combinations I would like to see are Normal/Ghost, Normal/Ice, Normal/Electric, and Normal/Dragon.