Then the writers should get to it. If there is so much ground to cover mythology-wise and the threat of cancellation looms over it you would think they would quit dragging stuff out and giving us so much uninteresting filler.
A few things.........
1. The writers have stated they have a 5 year arc which means right now, they're telling the story at that pace. With this move, the best case scenario we can probably hope for is that Fringe's core audience will simply follow it to Friday and it will get one more Season and
2. At that point, they'll have to compress 2 seasons of stories into 1 and you'll get your wish.
3. Obviously taste is subjective to a large degree so one man's awesome is another's bleh at times. And, I won't argue that Season 1 had it's fair share of issues and bland characterizations, including Olivia. I also won't argue that there things that can be tweaked even in Season 3. However, this show is just like ST:TNG in that the first year was sort of painful with just a few bright spots......the second season was an improvement and in Fringe's case, the last half of Season 2 was a definite improvement over the first part.
However, even with a few of it's issues left, Fringe this season has been TNG Season 3 excellent by all accounts. That's not to say it's perfect and I'll agree that a couple of the characters could use some of the drugs that Walter's taking, but it's still very good, very intelligent television with a strong story to drive it. So, seriously now, how many TV Sci-Fi/Fantasy/Genre shows can you name me that are as intelligently written with a long term arc based story that's as good as Fringe?
I'll grant you Walking Dead. So far, so excellent.
However, that's the only show I can think of that's anywhere near as good as Fringe is right now.