I am fairly certain you can't, as the new bag of holding is seen as a different entity than the one you had on the field previously, so it would not consider the exiled cards to be exiled by itself. Someone will probably drop by with all the proper rule references though.
that is also the feeling I had, I was debating putting this in instead of Library of Leng in my Nekusar EDH deck but my playgroup plays too much mass-bounce for it to be worth it if that's the case.
Hey guys just a question regarding this: If the Bag of Holding is returned to my hand and I play it again, can I still crack it right away and get back the cards it exiled the first time it was on the battlefield?
that is also the feeling I had, I was debating putting this in instead of Library of Leng in my Nekusar EDH deck but my playgroup plays too much mass-bounce for it to be worth it if that's the case.