Monster-Mania has announced that Carrie Fisher will be appearing at Monster-Mania Con 25 August 16-18 (although only scheduled to appear part of the day Sunday.) Fisher was scheduled to attend Monster-Mania 24 in March but had to cancel due to medical reasons.
From their Facebook page:
We are VERY excited to announce that CARRIE FISHER has rescheduled her appearance and will be attending MONSTER-MANIA CON 25 in Cherry Hill, NJ the weekend of AUG 16-18th!
Carrie of course played the iconic character of PRINCESS LEIA in the original STAR WARS trilogy.