Many months have passed since BER and BES were issued and we have not seen anything new.
Personnaly I think we will never see BEL, BEN, BEM, and BEP for many reasons :
I heard the company who is printing BES and BER starts to print the last prefix of the order first. We have seen BKF many months before BKA.
At the branch were I work we just received an UNC bundle of FEA, a 2 year old prefix, and I heard other banks also receive old prefixes.
The new $10 might come sooner then we think and BABN might have received instructions to stop the production immediately. They are probably printing the new $10 right now.
I guess BER might be the next FDY. Also, there will be a small premium for BES notes. I'm OK because I had the opportunity to buy BES 7737377.
I would like to hear the opinions of other collectors on this topic !