You wouldn't be the first, nor the last to transfer off a low pop server like Jenova.
If your primary goal is to find a raid group, then you will most likely have a better chance in a higher pop server.

For me, the key things tying me to Jenova are my linkshell contacts, less market saturation (I make more than I buy, so this can be a pro or a con depending on whether or not you craft), and my FC.
...and I have a house.

I lulled around for quite some time near the end of SCoB actually, because my static leader suddenly took off to Gilgamesh and I had not gotten to know many people to raid with at the time.