Am I the only one who will not miss having Michael R. as a series regular? I know that his character is important, but just like any other character departing from the show, it acts as a means to allow Clark to grow and move past things. And despite everyone's love-hate relationship with Lana, it's probably for the best that she makes an exit.
For season 8, will they ever mention Clark becoming a reporter? Will we see Martha again? Perry White? A blooming relationship between Clark and Lois perhaps?
Ever since they introduced the Fortress of Solitude into the show, the seasons have been pretty solid - even though season 7 is not yet finished, I am looking forward to season 8 quite a bit. A lot can happen. With characters coming and going, who knows what we'll be seeing for the final season.