It remains intact. You can still wait for the rule of 80 to kick in, but it will take much longer to reach the 80. Most people I've met over the years who took it out early have regretted it. I'd recommend leaving it if you will eventually be able to collect from it. You never know what your old age will be like and it's kind of nice to have at least that waiting for you.
So...if I change careers, what happens to my TRS retirement? Does it disappear? Do I still have to wait for the rule of 80 I believe it is? Or can I apply for retirement whenever from that account if I donít plan on returning to the field.