I say stay NC. You could ask D if she wants anything in the future that W might leave for her or does she want you to get rid of it. I know she is 8 but she did say she wanted to forget about W! Anyway that way you have a plan in place if W does attempt to contact you again but you can stay NC.

(subconsciously you might be looking for a reason to contact her)

me,34
exH,34
S,16 months
S:3/31/09-left for OW
started DBing 10/09
d final: sometime 10/10
current:
http://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2022856&page=1
met in 2004