In the answer to this question you stated that once an asset is issued, additional units cannot be issued at a later point in time, the reason given being:
"The problem with allowing additional asset units to be created in a subsequent transaction is the security - it could only work if those units were issued by the same private key. In that case you might as well just issue a much larger quantity in the first place…"
If this is the case, can you please consider allowing the private key that issued the initial tranche of assets to issue more of the same, essentially making it the issuing authority for that asset? Putting aside the risk of issuing a massive amount up-front and storing them in a cold wallet (just ask BTER), you are still stuck with a finite supply if you can't.