Totally! After Hershel's speech at the end, you could see that Rick was coming to realise that, despite his trust issues (can you really blame him for these, though?), he needs Daryl, he needs people like Tyreese and Michonne, and he even needs Merle.
I like how the parallels between Rick and the Governor are becoming more obvious. In some ways, they're starting to become each other - the Governor wants an end to barbeques and picnics, and a move towards militarisation and absolute control, realising that the world is different and people can't live that way any more (which is echoed by Andrea); Rick is starting to crack under the pressure of the world he now lives in, the fact that there is no time to grieve between deaths, and the weight of responsibility as his foundations crumble.
I agree, too, that the walkers may take even more of a back-seat role, serving to keep everyone on their toes when they start to think that a tight situation can't become worse. We do have to remember, though, that the walkers have never been more than a dramatic device, and as such have always been more in the background than the foreground.
*RAMPANT SPECULATION AHEAD*
As someone who's not read the source material, I'm having fun trying to work out where things will go from here. Of course there's going to be a showdown between Rick and the Governor, and the way the characters are set up it's obvious that Rick will come out on top (though he has to lose a lot to win). I'd like to think that the prison is still a stronghold come series four, but I expect the Governor and his army to destroy its fences and blow holes in important walls to remove the safety it provides, so we'll probably see the group moving through the wild again. As for the group itself, it needs to grow, but Rick won't allow that... so I foresee Rick becoming unfit to command, the group being assimilated by a larger group, and then a power struggle between its leader and Rick as he recovers.
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Back to reality, I'm interested to see where Merle and Daryl end up. I reckon they'll find themselves in a hopeless situation, only to be rescued by the Governor's men.