Seems my original question was misconstrued.
I meant that Terra should be closed down and Titan should continue its promising existence. However a char transfer service ought to be implemented much later from Terra to Titan.
My characters represent a decade of work that shall not, and cannot, be repeated. I am 40 years old and shall turn 41 this year. I have about thirty years left and 40 if I am lucky. I'm not going to level up and cap another four chars. The idea is faintly ridiculous