Question : What E-mail options do i have?

Time Warner took over Adelphia.  Now I learn that my Adelphia e-mail account is being closed.  The new address is to be Roadrunner.
Can I maintain my old "adelphia" address and automatically port this address to the new Roadrunner e-mail?  

Answer : What E-mail options do i have?

Most likely, you do not have any choice -- it depends if Adelphia is offering e-mail forwarding to your new Time Warner account.  I tried to check on both web sites, but could not find anything for certain.  You would be best off to contact either Adelphia's or Time Warner's customer service and inquire as to whether or not they offer e-mail forwarding service from your old @adelphia.net e-mail to your new Road Runner e-mail.