I love the stable changes come Cataclysm, but I'm terrified that I'll loose my chance to retame some of the rare beasties I've foregone for now due to the limited slots.
My stables as of now:

Rafa's my main guy. I don't ever really go anywhere without him. However, I realise it'd be easy to get him back in Cata.

I got Samsa for raiding and really don't need him. I have no attachment to him and I don't raid anymore, and Rafa's my go-to for 5mans. I don't mind abandoning Samsa for a vanilla rare.

Safira is my only spirit beast. I'm actually not a huge fan, I'd much prefer Loque or Skoll but both evade me. I'm planning to go back to Northrend and look for Skoll and Loque come Cataclysm. I suppose Safira could go, but I do like her. I just don't... love her, I guess.

This fella doesn't have a name yet. I got him because of the aoe, but I haven't had the need for a tanky pet since I tamed him. He's definitely not necessary to keep.

I love Atha. She's awesome, she fights with herself, she's fierce, she's great... she's also horribly bugged. Ever since the problem with the pet talent trees she hasn't been able to hold aggro. I see TS go off and I see growl hit the mob, but still I pull off her in two shots.

So this is my conundrum: there are at least three rares I want from Azeroth.

I'm getting this lady, no doubt about it. I love her so very much, and I'm not risking her disappearance in Cataclysm!

I love the ghost saber. I had it for a while on my first test hunter on my husband's account (haha I just realised I used petopia before I even got my own account!!! ˆ-ˆ) and it's a gorgeous cat. I wish Gondria's texture was more like this and less like I-can-see-your-eyes-through-your-butt. I'm definitely considering whether to get it before Cata, since it'll wreak havoc with Darkshore.

I'm a huge fan of Rak'Shiri. I regret letting her go when I had her. She's gorgeous and probably the only riding tiger skin I like.
There are other rare pets I like and worry about come Cataclysm. For example, I'm debating whether or not Old Cliff Jumper is in danger.

I love his green eyes. <3
I also don't know whether the changes in Barrens will destroy our chances of finding Azzere...

So you see my dilemma... I'm pretty sure the wolf and the bear are going, and I'm definitely taming Clutchmother. Beyond that, I just don't know... Any advice?
My husband suggested letting go of Rafa as well and taming Cluthmother, Ghostsaber and Rak'Shiri, but it breaks my heart to think about letting Rafa go...