Board Thread:Game Discussion/@comment-28169398-20180505014027/@comment-49.185.251.220-20180505094017

And based on history, although we have not had a complete series reset as Sirebel mentioned, when individual tiers or time trials have been reset or added, it doesn't alter the 'lock status' of that tier.

In otherwords, if you have already opened the tier and triggered the showcase discount, it won't relock and allow you to trigger it again. You will have to gamble how this reset will be implemented and bank on the new series if you want to collect the rewards now.