Class Change?

I really don't know what to say about Cataclysm. Everything is turned upside down for me.
I played as priest in BC and WotLK and even vanilla! Now in Cata everything just crashed... I don't wanna play, I take long breaks and I can't get anywhere in either PvP or PvE. The priest just isn't my class anymore. At the same time as I lower my head for my loss of my priest I rise my head for the druid, my newfound favorite class. It appers like druid were made for me! I love playing it! But then... When you get to the choice.

I played priest since vanilla, Lyn, my main, were created in BC to try the blood elf. She was my first raider, first arena player and my everything! We been through so much, I hunted achievements like crazy with her. So, damn, much work. Over 100 days played on her! Not even my vanilla characters can beat that!
Now?
My new not-having-anything druid which I love?
Or my priest which I got my soul into?

This is a choice I can't take. I can't play priest anymore, thats a fact. I don't wanna play priest anymore. I wanna be a druid. At the same time I just can't bring myself to leave my priest, with all that work.

I wish there could be a class change, like race change, faction change, name change and so! I understand this would be problems in many ways... But for anythings sake! There are so many more like me, which put so much work in our characters we don't wanna just leave, and are just able to put EVERYTHING on one character, but at the same time just don't wanna continue like this when we found another class to love. Its a so hard choice, I know tons of people stopping to play becuse of this! Mostly in cata!.

Why can't you create a class change? I mean...
It can have a cooldown or just be able to use one time per character! What do I know! But isn't there ANYTHING to do about us people which gets more and more depressed becuse of this choice and even quits becuse of it?

// Maria - Lyn and Lunnah.